Tiny amount coming from broken crate (5)
I believe the answer is:
trace
'tiny amount' is the definition.
(I've seen this before)
'broken crate' is the wordplay.
'broken' indicates anagramming the letters.
'crate' anagrammed gives 'TRACE'.
'coming from' acts as a link.
(Other definitions for trace that I've seen before include "a little bit" , "Skimpy garment" , "Make a copy using semi-transparent paper" , "Find - tiny portion" , "a piece of harness" .)