Small, small sinks (7)
I believe the answer is:
pockets
'small small sinks' is the definition.
The definition and answer can be both man-made objects as well as being plural nouns.
Maybe you can see an association between them that I can't see?
'small sinks' is the wordplay.
'small' becomes 'pocket' (I've seen this before).
'sinks' becomes 's' (this might be a standard abbreviation which I don't know about).
'pocket'+'s'='POCKETS'
Can you help me to learn more?
(Other definitions for pockets that I've seen before include "Pouches in garments" , "Snaffles" , "Trousers" , "Peeks to make up pouches" , "Gathers" .)