Material about production of play (12)
I believe the answer is:
recreational
'play' is the definition.
Both the answer and definition are adjectives. Maybe you can see a link between them that I don't see?
'material about production' is the wordplay.
'material' becomes 'real' (associated in meaning).
'about' means one lot of letters goes inside another.
'production' becomes 'creation' (I've seen this before).
'real' going around 'creation' is 'RECREATIONAL'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for recreational that I've seen before include "Like some drugs" , "for diversion" , "Done for enjoyment" , "type of drug" , "(Of drugs) used for kicks" .)