Burn disc, or char a little (6)
I believe the answer is:
scorch
'burn' is the definition.
(scorch is a kind of burn)
'disc or char a little' is the wordplay.
'a little' indicates a hidden word.
'SCORCH' is hidden in the letters of 'disc or char'.
(Other definitions for scorch that I've seen before include "limit fire damage to outside" , "Burn; drive very fast (informal)" , "Become burnt in places" , "Burn slightly" , "Wither from exposure to heat" .)