Vision of men abandoning parentless cat (7)
I believe the answer is:
phantom
'vision' is the definition.
(thesaurus)
'men abandoning parentless cat' is the wordplay.
'men' becomes 'or' (I've seen this in other clues).
'abandoning' suggests deleting specific letters.
'parentless' becomes 'orphan' ('orphan' can be similar in meaning to 'parentless').
'cat' becomes 'tom' (a tom is a male cat).
'orphan' with 'or' taken away is 'phan'.
'phan'+'tom'='PHANTOM'
'of' is the link.
(Other definitions for phantom that I've seen before include "RR" , "Ballet-dancing costume" , "Sightseeing journey" , "Spirit" , "Illusion (at the opera?)" .)