Part of the body in Aldershot or Southampton (5)
I believe the answer is:
torso
'part of the body' is the definition.
(a person's chest)
'in aldershot or southampton' is the wordplay.
'in' says the answer is hidden in the clue.
'TORSO' is hidden in the letters of 'aldershot or southampton'.
(Other definitions for torso that I've seen before include "Body without head, neck and limbs" , "Body's trunk" , "Roost (anag)" , "Chest" , "Body (excluding head, neck and limbs)" .)