Caught by part of chain in prison (5)
I believe the answer is:
clink
'prison' is the definition.
(I've seen this before)
'caught by part of chain' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'by' means one lot of letters go next to another.
'part of chain' becomes 'link' ('link' is part of 'chain').
'c'+'link'='CLINK'
'in' acts as a link.
(Other definitions for clink that I've seen before include "Ringing sound - prison" , "Sound made when hitting glass" , "jug" , "Old London prison" , "1 ac [COOLER]" .)