Metal framework making rasping sound (7)
I believe the answer is:
grating
This could be a double definition.
'metal framework' is the first definition.
'grating' can be an answer for 'framework' (grating is a kind of framework). I am not sure about the 'metal' bit.
'making rasping sound' is the second definition.
(grate can mean to make a rasping noise)
Can you help me to learn more?
(Other definitions for grating that I've seen before include "Harsh sounding" , "Lattice" , "Wearing away" , "Frame of bars supporting a fire" , "Jarring" .)