Devoted leftist getting behind conservation area (6)
I believe the answer is:
sacred
'devoted' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?
'leftist getting behind conservation area' is the wordplay.
'leftist' becomes 'red' (red can informally mean communist).
'getting behind' says to put letters next to each other (some letters go behind others).
'conservation area' becomes 'sac' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'red' put after 'sac' is 'SACRED'.
Can you help me to learn more?
(Other definitions for sacred that I've seen before include "not to be interfered with?" , "'Consecrated, holy (6)'" , "'Hallowed, holy (6)'" , "Holy, blessed" , "Like gravestones maybe" .)