Needles for suppliers of information (5)
I believe the answer is:
narks
This clue could be a double definition.
'needles' is the first definition.
The answer and definition can be both to do with communicating as well as being verbs in their -s form.
Maybe they are linked in a way I don't understand?
'suppliers of information' is the second definition.
The definition and answer can be both people as well as being plural nouns.
Perhaps there's a link between them I don't understand?
'for' is the link.
Can you help me to learn more?
(Other definitions for narks that I've seen before include "Coppers' ..... are slang police informers" , "Irritates" , "singers" , "Annoys; informers (sl.)" .)