Government stopping main review by rushing to expel Labour leader for exaggerating (10)
I believe the answer is:
magnifying
'exaggerating' is the definition.
('magnify' can be a synonym of 'exaggerate')
'government stopping main review by rushing to expel labour leader' is the wordplay.
I cannot really see how this works, but
'government' could be 'g' (abbreviation for government) and 'g' is present in the answer.
an anagram of 'main' is 'mani' which is present in the remaining letters.
'leader' could be 'f' (I have seen 'German leader ' mean 'f' so perhaps 'leader' could also mean 'f') and 'f' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'for' is the link.
Can you help me to learn more?
(Other definitions for magnifying that I've seen before include "Increasing (optically)" , "Extolling once" , "making head appear big?" .)