Politician caught in cunning habit of a nun (6)
I believe the answer is:
wimple
'habit of a nun' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'politician caught in cunning' is the wordplay.
'politician' becomes 'MP' (Member of Parliament).
'caught in' is an insertion indicator.
'cunning' becomes 'wile' (I've seen this in another clue).
'mp' going inside 'wile' is 'WIMPLE'.
Can you help me to learn more?
(Other definitions for wimple that I've seen before include "Amazon country" , "Woman's old headdress, worn by some nuns now" , "Nun's headgear" , "Nun's headdress in former times" , "Woman's veil of old" .)