One old reformed simpleton (6)

I believe the answer is:

noodle

'simpleton' is the definition.
(I've seen this before)

'one old reformed' is the wordplay.
'reformed' is an anagram indicator.
'one'+'old'='oneold'
'oneold' anagrammed gives 'NOODLE'.

(Other definitions for noodle that I've seen before include "bit of a dish" , "Staple of Chinese cuisine" , "Nitwit" , "Piece of pasta - fool" , "Idiot" .)

I've seen this clue in The Telegraph.

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