Disengagement on the left during prosperous time (7)
I believe the answer is:
boredom
'disengagement' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'the left during prosperous time' is the wordplay.
'the left' becomes 'red' (red can informally mean communist).
'during' means one lot of letters goes inside another.
'prosperous time' becomes 'boom' (I've seen this in another clue).
'red' placed within 'boom' is 'BOREDOM'.
'on' is the link.
Can you help me to learn more?
(Other definitions for boredom that I've seen before include "Feeling" , "Monotony" , "weary idleness" , "Ennui in bedroom" , "Tedium, ennui" .)