Draw a small amount (5)
I believe the answer is:
trace
I believe this clue is a double definition.
'draw' is the first definition.
(I know that draw can be written as trace)
'a small amount' is the second definition.
(I've seen this in another clue)
(Other definitions for trace that I've seen before include "Discover - modicum" , "Skimpy garment" , "Vestige; manage to find" , "Follow to source" , "Scarcely detectable amount" .)