...provide material in a flexible way (6)
I believe the answer is:
supply
This could be a double definition.
'provide material' is the first definition.
'supply' can be an answer for 'provide' (synonyms). I am unsure of the 'material' bit.
'in a flexible way' is the second definition.
(I've seen this before)
Can you help me to learn more?
(Other definitions for supply that I've seen before include "Give" , "with considerable flexibility" , "Fund" , "Provide; flexibly" , "in pliant manner" .)