Boy with nothing on a Polynesian state (5)
I believe the answer is:
samoa
'polynesian state' is the definition.
(country in Polynesia)
'boy with nothing on a' is the wordplay.
'boy' becomes 'sam' (boy's name).
'with' says to put letters next to each other.
'nothing on' becomes 'o' (I've seen this in other clues).
'sam'+'o'+'a'='SAMOA'
(Other definitions for samoa that I've seen before include "Group of volcanic islands in the S Pacific" , "island territory" , "South-west Pacific nation" , "Commonwealth country in the Pacific, capital Apia" , "South Pacific island country, gaining its independence from New Zealand in 1962" .)