Young camper in pants nothing but cosy (3,5)
I believe the answer is:
boy scout
'young camper' is the definition.
The answer and definition can be both people as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'pants nothing but cosy' is the wordplay.
'pants' is an anagram indicator (UK informal term for 'nonsense' or 'rubbish').
'nothing' becomes 'O' (looks like zero - 0).
'o'+'but'+'cosy'='obutcosy'
'obutcosy' is an anagram of 'BOY SCOUT'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for boy scout that I've seen before include "could be going on sixteen [JAMBOREE]" , "Jamboree attendee?" , "Baden-Powell follower" , "Member of international youth organisation" , "Woggle-wearing dibber and dobber!" .)