Caught in a misguided denial (6)
I believe the answer is:
nailed
'caught' is the definition.
(I've seen this before)
'a misguided denial' is the wordplay.
'a misguided' is an anagram indicator (I've seen this in other clues).
'denial' anagrammed gives 'NAILED'.
'in' is the link.
(Other definitions for nailed that I've seen before include "Firmly attached -- arrested" , "Firmly fixed" , "Fastened with metal pins" , "Tacked" , "Hammered in" .)