What olive oil can be more unused? (5,6)
I believe the answer is:
extra virgin
'what olive oil' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'be more unused?' is the wordplay.
'be more' becomes 'extra' (I've seen this before).
'unused?' becomes 'virgin' (virgin can mean new or unused).
'extra'+'virgin'='EXTRA-VIRGIN'
'can' is the link.
Can you help me to learn more?
(Other definitions for extra virgin that I've seen before include "providing insurance for imminent sacrifice?" , "Maiden over" , "Grade of olive oil" , "(Of olive oil) of the best quality" , "Type of oil" .)