Landlord's sardonic next-day offer to deliver better times scrapped (4,4)

'landlord's' is the definition.
Both the answer and definition are singular nouns.
Perhaps they are linked in a way I don't understand?

'sardonic next-day offer to deliver better times scrapped' is the wordplay.
I cannot quite understand how this works, but
'deliver' could be 'free' (I've seen this before) and 'free' is found in the answer.
The remaining letters 'beer' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?