Weary sexy chap stripped — just topless (7)
I believe the answer is:
exhaust
'weary' is the definition.
(I know that exhaust is a type of weary)
'sexy chap stripped just topless' is the wordplay.
'sexy' becomes 'ex' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'stripped' means to look at the middle letters.
'topless' means to remove the first letter.
The middle of 'chap' is 'ha'.
'just' with its initial letter removed is 'ust'.
'ex'+'ha'+'ust'='EXHAUST'
Can you help me to learn more?
(Other definitions for exhaust that I've seen before include "Completely tire out" , "Tire out - waste gases from engine" , "Deplete" , "Tube carrying off fumes from car engine" , "Car's fume pipe" .)