Recollected no blame's attached to new duke? (8)
I believe the answer is:
nobleman
'duke?' is the definition.
(duke is a kind of nobleman)
'recollected no blame's attached to new' is the wordplay.
'recollected' is an anagram indicator.
'attached to' means one lot of letters go next to another.
'new' becomes 'n'.
'no'+'blame'='noblame'
'noblame' anagrammed gives 'noblema'.
'noblema'+'n'='NOBLEMAN'
(Other definitions for nobleman that I've seen before include "Peer (of realm)" , "Member of peerage" , "Earl, say" , "High-ranking male" , "Titled person" .)