Fish feature (4)
'fish feature' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for gill that I've seen before include "Six nips" , "Breathing organ in fish" , "Fish's breathing apparatus" , "Small liquid measure" , "Organ for breathing under water" .)
'fish feature' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fin that I've seen before include "Paddle-like organ" , "Swimmer's flipper" , "Swimmer" , "Thin projection for fish to steer itself" , "Part of an aircraft's tail" .)