Method, style (3)
I believe the answer is:
way
I believe this clue is a double definition.
'method' is the first definition.
(way of doing something)
'style' is the second definition.
(I know that style can be written as way)
(Other definitions for way that I've seen before include "Path" , "Street" , "Route; direction" , "'Manner, mode (3)'" , "Manner; road" .)