Play with breeds from oyster bed (3)
I believe the answer is:
toy
This might be a double definition.
'play with' is the first definition.
(thesaurus)
'breeds from oyster bed' is the second definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
Can you help me to learn more?
(Other definitions for toy that I've seen before include "Object for a child to play with" , "Child's amusement" , "Trifle or dally with" , "Miniature (dog)" , "One of spelt out words" .)