Opens bin out for unwanted parts of fish (3,5)
I believe the answer is:
pin bones
'unwanted parts of fish' is the definition.
I can't judge whether this defines the answer.
'opens bin out' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'opens'+'bin'='opensbin'
'opensbin' with letters rearranged gives 'PIN BONES'.
'for' is the link.
Can you help me to learn more?
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