Churchillian symbol (1,4)
I believe the answer is:
v sign
'churchillian symbol' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for v sign that I've seen before include "Winning indication" , "Offensive gesture" , "Obscene gesture" , "Rude gesture" , "Gesture (from Winston or Harvey?)" .)