Nuts – and nuts for saint (7)
I believe the answer is:
dunstan
'for saint' is the definition.
(I've seen this before)
'nuts and nuts' is the wordplay.
'nuts' indicates an anagram (nuts can mean crazy).
'and'+'nuts'='andnuts'
'andnuts' is an anagram of 'DUNSTAN'.
(Other definitions for dunstan that I've seen before include "Former archbishop" , "Saint, tweaked Devil's nose" .)
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