Leading boys are not wearing anything (4)
I believe the answer is:
bare
'leading boys are not wearing anything' is the definition.
I can't tell whether this defines the answer.
'leading boys are' is the wordplay.
'leading' says to take the initial letters (the leading letter of the word).
The first letter of 'boys' is 'b'.
'b'+'are'='BARE'
Can you help me to learn more?
(Other definitions for bare that I've seen before include "Naked or empty" , "State of deciduous tree in winter" , "Carried" , "Nude; uncover" , "Stark - naked" .)