NOTABENE

NB (4,4)

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

• Quick crossword No 16,315 — 2022-08-21 23:00:21
  12D: Pay special attention — be on 19 (anag) (4,4)
• Quick crossword No 15,788 — 2020-12-12 00:00:22
  12D: NB (4,4)