Relaxed Left pinching Conservative policy (8)
I believe the answer is:
reclined
'relaxed' is the definition.
(to recline is to relax or lay around)
'left pinching conservative policy' is the wordplay.
'left' becomes 'red' (red can informally mean communist).
'pinching' indicates putting letters inside (taking inside).
'conservative' becomes 'C' (UK political abbreviation).
'policy' becomes 'line' (as in the party line).
'c'+'line'='cline'
'red' placed around 'cline' is 'RECLINED'.
(Other definitions for reclined that I've seen before include "Leant back comfortably" , "Leaned in a resting position" .)