Crossword Genius

Befuddled prisoner set up (10)

Ross

I believe the answer is:

confounded

'befuddled' is the definition.
(synonyms)

'prisoner set up' is the wordplay.
'prisoner' becomes 'con' (abbreviation for 'convict').
'set up' becomes 'founded' (I've seen this in other clues).
'con'+'founded'='CONFOUNDED'

(Other definitions for confounded that I've seen before include "Brought to confusion" , "ending of Te Deum?" , "Perplexed - damned" , "Really annoying (nuisance)" , "Confused; astonished" .)

I've seen this clue in The Telegraph.
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