Sample part of banquet – a steak (5)
I believe the answer is:
taste
'sample' is the definition.
('taste' can be a synonym of 'sample')
'part of banquet a steak' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'TASTE' is hidden within 'banquet a steak'.
(Other definitions for taste that I've seen before include "gains experience" , "Sample, savour" , "Sense showing refinement" , "A sense; briefly sample" , "Fine discernment" .)