Earl wants cigar and nuts (8)
I believe the answer is:
cardigan
'earl' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'cigar and nuts' is the wordplay.
'nuts' indicates an anagram (nuts can mean crazy).
'cigar'+'and'='cigarand'
'cigarand' with letters rearranged gives 'CARDIGAN'.
'wants' acts as a link.
Can you help me to learn more?
(Other definitions for cardigan that I've seen before include "One making ridiculous charge" , "corgi" , "See 25" , "Man in charge" , "Jacket named after an earl" .)