Lying as before, on getting caught (5)
I believe the answer is:
prone
'lying' is the definition.
(I've seen this in another clue)
'before on getting caught' is the wordplay.
'before' becomes 'pre' (prefix meaning 'before').
'getting caught' is an insertion indicator.
'pre' enclosing 'on' is 'PRONE'.
'as' is the link.
(Other definitions for prone that I've seen before include "Recumbent, likely" , "Given" , "Lying face downward" , "Prostrate" , "Placed face down" .)