A young deer has to cringe (4)
I believe the answer is:
fawn
I believe this clue is a double definition.
'a young deer' is the first definition.
(I've seen this in another clue)
'to cringe' is the second definition.
('fawn' can be a synonym of 'cringe')
'has' is the link.
(Other definitions for fawn that I've seen before include "Cringe" , "Flatter, be obsequious like young deer" , "Light grey-brown colour" , "Be obsequious towards young deer?" , "Try to please" .)