PROTOTYPE

Preliminary version from which other forms may be developed (9)

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

• Quick crossword No 15,880 — 2021-03-30 23:00:02
  3D: First version of a new product (9)
• Quick crossword No 15,436 — 2019-10-28 00:00:33
  12D: Preliminary version from which other forms may be developed (9)