Others in support for shot (4)
I believe the answer is:
rest
This clue might be a double definition.
'others' is the first definition.
(eg the rest of a group)
'support for shot' is the second definition.
'rest' can be an answer for 'support' (e.g. a shoulder rest is a support for shoulder). I am not sure about the 'for shot' bit.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for rest that I've seen before include "Relaxation" , "Leisure" , "Balance" , "Repose, others" , "Take a breather - (the) others" .)