Inside covering Labour's leader, popular in government? (6)
I believe the answer is:
lining
'inside covering' is the definition.
'lining' can be an answer for 'covering' (I have seen 'Inner covering ' mean 'lining' so perhaps 'covering' could also mean 'lining'). I am unsure of the 'inside' bit.
'labour's leader popular in government?' is the wordplay.
'labour's leader' becomes 'l'.
'popular' becomes 'in' ('in' can mean trendy).
'government?' becomes 'g' (abbreviation for government).
'l'+'in'+'in'+'g'='LINING'
Can you help me to learn more?
(Other definitions for lining that I've seen before include "Inner part of a coat" , "Inside layer (of coat)" , "Inside of coat (or outside of cloud?)" , "Inlay" , "Heather is wearing fashionable" .)