Editor blends half of them to make something wholesome, perhaps (6)
I believe the answer is:
edible
'them to make something wholesome perhaps' is the definition.
I can't judge whether this defines the answer.
'editor blends half' is the wordplay.
'editor' becomes 'edi' (I can't justify this - if you can you should give a lot more credence to this answer).
'half' indicates taking half.
'blends' halved is 'ble'.
'edi'+'ble'='EDIBLE'
'of' is the link.
Can you help me to learn more?
(Other definitions for edible that I've seen before include "Belied (anag)" , "I can swallow that!" , "Fit to be used as food" , "Fit to eat" , "(Of food) harmless" .)