In the post, a bonus coffee pot (4)
I believe the answer is:
perk
'coffee pot' is the definition.
The definition and answer can be both related to property as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'in the post a bonus' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'per' (eg 'one a day' means 'one per day') and 'per' is present in the answer.
A single letter 'k' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for perk that I've seen before include "Company car, for example" , "Incidental benefit from one's employment" , "A little extra" , "Fringe benefit" , "Informal goodie given on top of salary" .)