Depiction of the boys on the left (9)
I believe the answer is:
portrayal
'depiction' is the definition.
(I know that depiction can be written as portrayal)
'boys on the left' is the wordplay.
'boys on' becomes 'portray' (I can't justify this - if you can you should give a lot more credence to this answer).
'the left' becomes 'al' (I've seen this in other clues).
'portray'+'al'='PORTRAYAL'
'of the' is the link.
Can you help me to learn more?
(Other definitions for portrayal that I've seen before include "It depicts" , "Artistic depiction" , "Depicting characters" , "Picture or description of royal prat" , "drawing" .)