Burn grape skin with an amount of electricity (6)
I believe the answer is:
charge
'an amount of electricity' is the definition.
I can't tell whether this definition defines the answer.
'burn grape skin' is the wordplay.
'burn' becomes 'char' (charring is a kind of burning).
'skin' suggests removing the centre (only the skin or outside of the word is used).
'grape' with its centre taken out is 'ge'.
'char'+'ge'='CHARGE'
'with' acts as a link.
Can you help me to learn more?
(Other definitions for charge that I've seen before include "Fill; fee" , "running cost" , "Attack - cost" , "Impose fee on" , "Rush forward in attack" .)