Taste using a plastic pipette (8)
I believe the answer is:
appetite
'taste' is the definition.
(thesaurus)
'a plastic pipette' is the wordplay.
'plastic' is an anagram indicator (plastic can mean easily moulded).
'pipette' anagrammed gives 'ppetite'.
'a'+'ppetite'='APPETITE'
'using' acts as a link.
(Other definitions for appetite that I've seen before include "thirst" , "Hunger; desire" , "stomach" , "Physical need for food" , "Hunger or zeal" .)