Witch's cat perhaps may be very recognisable (8)
I believe the answer is:
familiar
I believe this clue is a double definition.
'witch's cat perhaps' is the first definition.
(familiar can mean an animal belonging to a witch)
'very recognisable' is the second definition.
(something recognisable is familiar)
'may be' acts as a link.
(Other definitions for familiar that I've seen before include "Well known or easily recognised" , "Well-acquainted with a witch's cat" , "routine" , "Usual; well known" , "spirit" .)