Metal goods swimming in water (7)
I believe the answer is:
tinware
'metal goods' is the definition.
The definition suggests a singular noun which matches the answer.
'swimming in water' is the wordplay.
'swimming' indicates anagramming the letters.
'in'+'water'='inwater'
'inwater' anagrammed gives 'TINWARE'.
Can you help me to learn more?
(Other definitions for tinware that I've seen before include "Metal objects" , "Metal items" , "Cheap material" , "Baking sheets" , "Metal products" .)