Screen to turn at intermission (9)
I believe the answer is:
windbreak
'screen' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'turn at intermission' is the wordplay.
'turn' becomes 'wind' (I've seen this before).
'at' means one lot of letters go next to another.
'intermission' becomes 'break' (synonyms).
'wind'+'break'='WINDBREAK'
'to' is the link.
Can you help me to learn more?
(Another definition for windbreak that I've seen is " wall giving shelter".)