Caught in outrageous denial (6)
I believe the answer is:
nailed
'caught' is the definition.
(I've seen this before)
'outrageous denial' is the wordplay.
'outrageous' indicates anagramming the letters (I've seen this in other clues).
'denial' with letters rearranged gives 'NAILED'.
'in' is the link.
(Other definitions for nailed that I've seen before include "Fixed with a spike" , "Tacked" , "Fastened with metal pin" , "Fixed with metal spikes" , "Fastened with metal pins" .)