Boy content to skip starter (3)
I believe the answer is:
lad
'boy' is the definition.
(informal term for boy)
'content to skip starter' is the wordplay.
'content' becomes 'glad' (I've seen this in another clue).
'to skip starter' means to remove the first letter (I've seen 'skipping starters' mean this).
'glad' with its initial letter taken off is 'LAD'.
(Other definitions for lad that I've seen before include "Stable employee" , "Shaver" , "Boy, familiar" , "Son" , "A young chap into ballads" .)