Pacific group turn on Paisley (9)
I believe the answer is:
polynesia
'pacific group' is the definition.
(Polynesia is a group of Pacific islands)
'turn on paisley' is the wordplay.
'turn' is an anagram indicator.
'on'+'paisley'='onpaisley'
'onpaisley' anagrammed gives 'POLYNESIA'.
(Other definitions for polynesia that I've seen before include "Pacific island group" , "large group of islands" , "Extensive group of Pacific islands" , "Pacific region?" , "Pacific islands incl. N Zealand, Samoa and Hawaii" .)