Furnish in a flexible way? (6)
I believe the answer is:
supply
I believe this is a double definition.
'furnish' is the first definition.
(I know that furnish can be written as supply)
'in a flexible way?' is the second definition.
(I've seen this before)
(Other definitions for supply that I've seen before include "Teacher, sort of" , "in pliant manner" , "in flexible way" , "Make available" , "Lay on" .)