Mean to overcharge youth leader (6)
I believe the answer is:
stingy
'mean' is the definition.
(both can mean miserly)
'overcharge youth leader' is the wordplay.
'overcharge' becomes 'sting' (I've seen this in another clue).
'youth leader' becomes 'y' (I've seen this in other clues).
'sting'+'y'='STINGY'
'to' is the link.
(Other definitions for stingy that I've seen before include "'Mean, miserly (6)'" , "Patch of nettles is" , "Tight with money" , "Mean, ungenerous" , "Mean, tight" .)