Injured deer is to live (6)
I believe the answer is:
reside
'live' is the definition.
(I know this)
'injured deer is' is the wordplay.
'injured' indicates an anagram.
'deer'+'is'='deeris'
'deeris' anagrammed gives 'RESIDE'.
'to' acts as a link.
(Other definitions for reside that I've seen before include "Inhabit" , "Stay - desire (anag)" , "Dwell permanently" , "Live (at an address)" , "Make one's home permanently" .)