Story about entertaining Gulf state clubs (7)
I believe the answer is:
romance
'story' is the definition.
(romance is a kind of story)
'about entertaining gulf state clubs' is the wordplay.
'about' becomes 're' (regarding**).
'entertaining' indicates putting letters inside.
'gulf state' becomes 'oman' (I've seen this before).
'clubs' becomes 'c' (abbreviation used in card games such as bridge).
'oman'+'c'='omanc'
're' going around 'omanc' is 'ROMANCE'.
(Other definitions for romance that I've seen before include "Cameron (anag) - love story" , "Make up stories - Menorca (anag)" , "Amorous relationship" , "Various languages such as French" , "Feeling of mystery; love affair" .)