Of use to writers still we hear (10)
I believe the answer is:
stationery
'of use to writers' is the definition.
I can't tell whether this defines the answer.
'still we hear' is the wordplay.
'still' becomes 'stationary' (both can mean immobile).
'we hear' indicates a 'sounds like' (homophone) clue.
'stationary' is a homophone of 'STATIONERY'.
Can you help me to learn more?
(Other definitions for stationery that I've seen before include "Treasury tags, for instance" , "Writing material" , "Files etc" , "Writing paper, etc" , "Materials needed for writing" .)