Cat sees aim adjusted (7)
I believe the answer is:
siamese
'cat' is the definition.
(I know that Siamese is a type of cat)
'sees aim adjusted' is the wordplay.
'adjusted' indicates anagramming the letters.
'sees'+'aim'='seesaim'
'seesaim' anagrammed gives 'SIAMESE'.
(Other definitions for siamese that I've seen before include "Pugnacious aquarium species -- shagginess, if I'm thief (anag)" , "cats?" , "Thease twins are joined at birth" , "Cat with slanting blue eyes and pale fur with darker points" , "type of cat" .)