High margins commonly dropped by East Enders? (7)
I believe the answer is:
aitches
'high margins' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Maybe they are linked in a way I don't understand?
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for aitches that I've seen before include "Two of which are in Hythe" , "Letters" , "They are regularly dropped in the East End" .)