Liking – a morsel (5)
I believe the answer is:
taste
This clue is a double definition.
'liking' is the first definition.
(I know that taste is a type of liking)
'a morsel' is the second definition.
(I've seen this in another clue)
(Other definitions for taste that I've seen before include "Sample - discrimination" , "Smack" , "Relish or discrimination" , "Preference" , "Perceive the flavour" .)