Country resort for a thin lad (8)
I believe the answer is:
thailand
'country' is the definition.
(I know that Thailand is a country)
'resort for a thin lad' is the wordplay.
'resort for' indicates anagramming the letters (I've seen this in other clues).
'a'+'thin'+'lad'='athinlad'
'athinlad' is an anagram of 'THAILAND'.
(Other definitions for thailand that I've seen before include "Phuket's location" , "SE Asian country" , "Southeast Asian country" , "Country of southeastern Asia" , "Country in SE Asia, capital of Bangkok" .)