One's naked, essentially wearing short, revealing piece (7)
I believe the answer is:
mankini
'one's naked essentially wearing short revealing piece' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'one's naked essentially wearing short revealing piece' is the wordplay.
I cannot really understand how this works, but
'wearing' could be 'in' (you are 'in' the clothes you're wearing) and 'in' is found in the answer.
'piece' could be 'man' (man can mean a chess piece) and 'man' is found in the answer.
'one' could be 'i' (Roman numeral) and 'i' is located in the answer.
A single letter 'k' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?