It may hold together broken china (5)
I believe the answer is:
chain
'it may hold together' is the definition.
The definition suggests a singular noun which matches the answer.
'broken china' is the wordplay.
'broken' is an anagram indicator.
'china' anagrammed gives 'CHAIN'.
Can you help me to learn more?
(Other definitions for chain that I've seen before include "Paper decoration" , "series of shops" , "trading group" , "string" , "Rope of metal links" .)