One inclined to make a retreat (5)
I believe the answer is:
bower
'a retreat' is the definition.
(I have seen 'Shady retreat' mean 'bower' so perhaps 'retreat' could also mean 'bower')
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for bower that I've seen before include "Shaded place under trees" , "lady's private room?" , "sanctuary" , "Shady retreat" , "Shady garden place" .)