Cover in case toy gets broken (3,4)
I believe the answer is:
tea cosy
'cover' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?
'case toy gets broken' is the wordplay.
'gets broken' indicates an anagram.
'case'+'toy'='casetoy'
'casetoy' is an anagram of 'TEA-COSY'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for tea cosy that I've seen before include "It keeps the beverage hot" , "leaves in a hot state in this?" , "Knitted item" , "put on for warmth" , "Pot cover" .)