Description of a nobleman taking in clubs (7)
I believe the answer is:
account
'description' is the definition.
(I've seen this before)
'a nobleman taking in clubs' is the wordplay.
'nobleman' becomes 'count' (count is a kind of nobleman).
'taking in' means one lot of letters goes inside another.
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'count' placed around 'c' is 'ccount'.
'a'+'ccount'='ACCOUNT'
'of' acts as a link.
(Other definitions for account that I've seen before include "Bill; importance" , "Story; bank service" , "Profitable to turn to this" , "Description; importance" , "Financial record; narrative" .)