Burnt tea given to socialist (7)
I believe the answer is:
charred
'burnt' is the definition.
(charring is a kind of burning)
'tea given to socialist' is the wordplay.
'tea' becomes 'char' (I've seen this before).
'given to' says to put letters next to each other.
'socialist' becomes 'red' (socialism is often associated with the colour red).
'char'+'red'='CHARRED'
(Other definitions for charred that I've seen before include "Scorched and blackened" , "Overcooked" , "Blackened by fire" , "Cleaned" , "Partially burnt" .)