Show fear in some game (5)
I believe the answer is:
quail
I believe this clue is a double definition.
'show fear' is the first definition.
(I've seen this before)
'some game' is the second definition.
(I've seen this before)
'in' is the link.
(Other definitions for quail that I've seen before include "Small bird of the partridge family" , "Show fear - of small game bird?" , "Flinch from small gamebird?" , "Shrink; a bird" , "See little bird" .)