Favourite part of Cape Town (3)
I believe the answer is:
pet
'favourite' is the definition.
(synonyms)
'part of cape town' is the wordplay.
'part of' indicates a hidden word.
'PET' can be found hidden inside 'cape town'.
(Other definitions for pet that I've seen before include "Preferred" , "Tamed animal; sulk" , "Favourite; fit of the sulks" , "Cat or dog" , "blue-eyed boy?" .)