| Union org. | 10 |
| Union organizer Jimmy who disappeared | 37 |
| Union organizers? | 17 |
| Union Pac. stops | 16 |
| Union Pacific and BNSF | 22 |
| Union Pacific et al. | 20 |
| Union Pacific et al.: Abbr. | 27 |
| Union Pacific headquarters | 26 |
| Union Pacific or Greyhound stop (abbr.) | 39 |
| Union Pacific Railroad headquarters | 35 |
| Union Pacific stop | 18 |
| Union Pacific terminus | 22 |
| Union Pacific's headquarters | 32 |
| Union paper | 11 |
| Union paper? | 12 |
| Union part | 10 |
| Union partner: Abbr. | 20 |
| Union payment | 13 |
| Union payments | 14 |
| Union perk found in the answer to each clue that's followed by a number | 75 |
| Union platform? | 15 |
| Union preceder | 14 |
| Union prison site in NW Illinois | 32 |
| Union promise | 13 |
| Union rate | 10 |
| Union representative? | 21 |
| Union requirement | 17 |
| Union requirement, maybe? | 25 |
| Union requirement? | 18 |
| Union ship | 10 |
| Union site | 10 |
| Union soldier | 13 |
| Union soldiers | 14 |
| Union Sq. and Times Sq. | 23 |
| Union Sq., e.g. | 15 |
| Union Sta. traffic | 18 |
| Union Sta. users | 16 |
| Union starters | 14 |
| Union station? | 14 |
| Union steward's domain | 26 |
| Union strikers | 14 |
| Union suit wearer? | 18 |
| Union suit? | 11 |
| Union supporter | 15 |
| Union supporter? | 16 |
| Union symbol | 12 |
| Union symbol? | 13 |
| Union target | 12 |
| Union targets | 13 |
| Union term | 10 |
| Union that didn't live long to regret endorsing Ronald Reagan in 1980 | 73 |
| Union that doesn't charge dues | 34 |
| Union that merged with SAG in 2012 | 34 |
| Union title, often | 18 |
| Union topic | 11 |
| Union tune sung by Baez at Woodstock | 36 |
| Union underminer | 16 |
| Union union, briefly | 20 |
| Union unit | 10 |
| Union units | 11 |
| Union V.I.P. | 12 |
| Union vehicle? | 14 |
| Union VIP | 9 |
| Union wage | 10 |
| Union wear | 10 |
| Union whose largest locals are in L.A. and N.Y.C. | 49 |
| Union with 2 1/2 mil. members | 29 |
| Union with 2.7 mil. members | 27 |
| Union with 3+ million members, in brief | 39 |
| Union with 3.2 mil. members | 27 |
| Union with a Dropout Prevention center | 38 |
| Union words | 11 |
| Union work ploy | 15 |
| Union __ | 8 |
| Union ___ | 9 |
| Union ___ (Dow Chemical subsidiary) | 35 |
| Union ___: Abbr. | 16 |
| Union's bane | 16 |
| Union's collection | 22 |
| Union's contract demand? | 28 |
| Union's foes | 16 |
| Union's minimum wage | 24 |
| Union, e.g. | 11 |
| Union, e.g.: Abbr. | 18 |
| Union, in D.C. | 14 |
| Union, in D.C., for one | 23 |
| Union, in DC | 12 |
| Union, in L.A. or D.C. | 22 |
| Union, N.J. college | 19 |
| Union, of a sort | 16 |
| Union-busting grp.? | 19 |
| Union-busting type | 18 |
| Union-contract stat | 19 |
| Union-forming phrase | 20 |
| Union-management agcy. | 22 |
| Union-mgmt. dispute watchdog | 28 |
| Union-opposing grp. | 19 |
| Union-starting phrase | 21 |
| Union-vote facilitator | 22 |
| Union: Abbr. | 12 |