| Permanently off the clock: Abbr. | 32 |
| Permanently marking actor Silver? | 33 |
| Permanently attached, to a zoologist | 36 |
| Permanently attached, in zoology | 32 |
| Permanently attached, as a barnacle | 35 |
| Permanently affect for the worse | 32 |
| Permanent White House staff member? | 35 |
| Permanent UN Security Council member, familiarly | 48 |
| Permanent U.N. Security Council member | 38 |
| Permanent Security Council member | 33 |
| Perlman's "Cheers" role | 37 |
| Perlman who married Danny DeVito | 32 |
| Perlman role on "Cheers" | 34 |
| Perlman on the rocks with Danny DeVito | 38 |
| Perlman of "Sunset Park" | 34 |
| Perlman of "Canadian Bacon" | 37 |
| Perlman of ''Cheers'' | 37 |
| Perle who inspired "Call Me Madam" | 44 |
| Perle that once gleamed in Washington | 37 |
| Perkins's stalker in "Psycho" | 43 |
| Perkins's "Psycho" costar | 39 |
| Perkins' ''Psycho'' co-star | 47 |
| Perkins who wrote "Blue Suede Shoes" | 46 |
| Perkins who sang "Blue Suede Shoes" | 45 |
| Perkins role in "Psycho" | 34 |
| Perk for a corporate executive, maybe | 37 |
| Periscope lens kept as a souvenir? | 34 |
| Peripherals standard, in computing | 34 |
| Peripheral device attachment point | 34 |
| Periods when Harry Potter books are unavailable? | 48 |
| Periods spent using a batting-practice bat? | 43 |
| Periods of warming ... or cooling off | 37 |
| Periods of seedings and plantings | 33 |
| Periods of rising prices for securities | 39 |
| Periods of history on a timeline | 32 |
| Periods of de-escalation, perhaps | 33 |
| Periods in stark contrast to global warming | 43 |
| Periods in contrast to global warming | 37 |
| Periods between Winter and Summer Olympics | 42 |
| Periods between vernal equinoxes | 32 |
| Periodontist's recommendation | 33 |
| Periodicals with unturnable pages | 33 |
| Periodicals not brought by a postal carrier | 43 |
| Periodically war-torn Turkish city | 34 |
| Periodically available fast food item | 37 |
| Periodical without a dead-tree version | 38 |
| Periodical with 0% home subscription rates? | 43 |
| Periodical put out by the same parent company | 45 |
| Periodical published in America? | 32 |
| Periodical periodical contributor | 33 |
| Periodical named after the Greek god of satire? | 47 |
| Periodical issued twelve times a year | 37 |
| Periodical for fruit drink makers? | 34 |
| Periodical dedicated to stylish boots? | 38 |
| Periodical by and for enthusiasts | 33 |
| Periodic table neighbor of manganese | 36 |
| Periodic table neighbor of cobalt | 33 |
| Periodic table creator Mendeleev | 32 |
| Periodic source of weird weather | 32 |
| Periodic arrival that causes much angst | 39 |
| Period's place in a sentence | 32 |
| Period with overtime pay, perhaps | 33 |
| Period when Long Island was formed | 34 |
| Period when birds and mammals appeared | 38 |
| Period when a computer is functioning | 37 |
| Period that started with Sputnik | 32 |
| Period that lasted around a millenium | 37 |
| Period starting on the second day of Passover | 45 |
| Period spent at a particular job | 32 |
| Period sometimes named for a statesman | 38 |
| Period sometimes named after a president | 40 |
| Period prior to year zero, in dates | 35 |
| Period prior to 1941, in the U.S. | 33 |
| Period preceding an expiration date? | 36 |
| Period postponing the inevitable | 32 |
| Period of usability, as for canned goods | 40 |
| Period of unrestrained criticism | 32 |
| Period of time when bar snacks are discounted? | 46 |
| Period of seven days without bathing? | 37 |
| Period of service, as in the Army | 33 |
| Period of meaningful interaction | 32 |
| Period of high artistic development | 35 |
| Period of George W. Bush's presidency | 41 |
| Period of fasting ended by Eid al-Fitr | 38 |
| Period of diminished returns for a stoner? | 42 |
| Period of decreased income at ski resorts, e.g. | 47 |
| Period of a renter's agreement | 34 |
| Period named for an earth goddess | 33 |
| Period marked by increased smelting | 35 |
| Period marked by distinctive character | 38 |
| Period in which the oboe d'amour was common | 47 |
| Period in the earth's history | 33 |
| Period in school just before graduation | 39 |
| Period in a historian's book | 32 |
| Period immediately before Easter | 32 |
| Period from opening day to the playoffs | 39 |
| Period for Marie Antoinette's doom | 38 |
| Period following Stone and Bronze | 33 |
| Period following Rome's fall | 32 |
| Period following homework completion, perhaps | 45 |