Indian's cart excellent on Ganges' bridges (5)
I believe the answer is:
tonga
'indian's' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's an association between them I don't understand?
'cart excellent on ganges' bridges' is the wordplay.
'TONGA' is hidden within the letters.
But, I am not sure how this is indicated.
Can you help me to learn more?
(Other definitions for tonga that I've seen before include "group of Pacific islands" , "Do a bad tango in the Pacific archipelago" , "Two-wheeled Indian vehicle" , "SW Pacific monarchy" , "The Friendly Islands" .)