Find small amount (5)
I believe the answer is:
trace
I believe this clue is a double definition.
'find' is the first definition.
(thesaurus)
'small amount' is the second definition.
(I've seen this before)
(Other definitions for trace that I've seen before include "Smidgen" , "Hunt down" , "a little bit" , "Detect - track" , "Skimpy garment" .)