Kindle typeface accommodates Middle English (6)
I believe the answer is:
foment
'kindle' is the definition.
(thesaurus)
'typeface accommodates middle english' is the wordplay.
'typeface' becomes 'font' ('font' can be a synonym of 'typeface').
'accommodates' indicates putting letters inside.
'middle english' becomes 'me'.
'font' enclosing 'me' is 'FOMENT'.
(Other definitions for foment that I've seen before include "Arouse or stimulate, perhaps trouble" , "Instigate, stir up" , "Stir up, cause trouble" , "Arouse or stimulate, say trouble" , "Arouse or stimulate, maybe trouble" .)