Energetic Indian state chief (2-5)
I believe the answer is:
go ahead
'energetic indian' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'state chief' is the wordplay.
'state' becomes 'goa' (Indian state).
'chief' becomes 'head' (synonyms).
'goa'+'head'='GO-AHEAD'
Can you help me to learn more?
(Other definitions for go ahead that I've seen before include "Signal to proceed" , "Enterprising (2 5); continue" , "OK" , "Up-and-coming -- authorisation" , "Pioneering (green light?)" .)