Inmate pre-irons pants (8)

I believe the answer is:

prisoner

'inmate' is the definition.
(I know that inmate can be written as prisoner)

'pre-irons pants' is the wordplay.
'pants' indicates an anagram (UK informal term for 'nonsense' or 'rubbish').
'pre'+'irons'='preirons'
'preirons' with letters rearranged gives 'PRISONER'.

(Other definitions for prisoner that I've seen before include "Gaol inmate" , "The ---, cult 60s TV series" , "One locked up" , "One kept confined" , "Person behind bars" .)

I've seen this clue in The Sun.

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