One wearing confused tramp's sweater? (6)
I believe the answer is:
armpit
'sweater?' is the definition.
Although both the answer and definition are singular nouns, I don't see how one could define the other.
'one wearing confused tramp's' is the wordplay.
'one' becomes 'i' (Roman numeral).
'wearing' is an insertion indicator.
'confused' indicates an anagram.
'tramp' with letters rearranged gives 'armpt'.
'i' put into 'armpt' is 'ARMPIT'.
Can you help me to learn more?
(Other definitions for armpit that I've seen before include "Hairy hollow" , "part of the body" , "(In anatomy) the axilla" , "depression which is personal" , "evident given "hands up"!" .)