Meagre tip (4)
I believe the answer is:
lean
I believe this clue is a double definition.
'meagre' is the first definition.
(I've seen this before)
'tip' is the second definition.
('lean' can be a synonym of 'tip')
(Other definitions for lean that I've seen before include "Thin; heel" , "skinny" , "What Jack Sprat's wife couldn't eat" , "Of meat, with little or no fat" , "Unproductive" .)