Are a scream about the allotment! (5-3)
I believe the answer is:
share-out
'the allotment' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'are a scream about' is the wordplay.
'a scream' becomes 'shout' (I can't explain this - if you can you should believe this answer much more).
'about' means one lot of letters goes inside another.
'are' put within 'shout' is 'SHARE-OUT'.
Can you help me to learn more?
(Another definition for share-out that I've seen is " Distribute".)