Small food sample (5)
I believe the answer is:
taste
'small food sample' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for taste that I've seen before include "Appreciation, discernment" , "one of the 4 [SENSE] s" , "Predilection" , "Sample orally" , "to eat in small amounts" .)