When shot, go to the treatment centre (3)
I believe the answer is:
got
'when shot' is the definition.
The definition and answer can be both related to bodily activities as well as being past participle verbs.
Perhaps there's an association between them I don't understand?
'go to the treatment centre' is the wordplay.
'to' is a charade indicator (letters next to each other).
'centre' means to look at the middle letters.
The central letter of 'treatment' is 't'.
'go'+'t'='GOT'
Can you help me to learn more?
(Other definitions for got that I've seen before include "Caught" , "Acquired" , "came by" , "Landed" , "Obtained" .)