He's in charge of the school play (6,6)

'play' is the definition.
I don't know anything about this answer so I can't judge whether it can be defined by this definition.

'he's in charge of the school' is the wordplay.
I cannot quite understand how this works, but
'he's' could be 'ports' and 'ports' is found within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is located in the answer.
'school' could be 's' and 's' is found within the answer.
The remaining letters 'maser' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

Can you help me to learn more?