ENABLER

Someone who makes it possible for another to do something (7)

Solution has appeared in 2 crosswords (0 across and 2 down):

• Quick crossword No 15,809 — 2021-01-07 00:00:53
  15D: One makes things possible (7)
• Quick crossword No 15,324 — 2019-06-18 23:00:09
  2D: Someone who makes it possible for another to do something (7)