Genial, communicative (9)
I believe the answer is:
expansive
This clue is a double definition.
'genial' is the first definition.
(I've seen this before)
'communicative' is the second definition.
(similar in meaning)
(Other definitions for expansive that I've seen before include "Tending to get bigger" , "Genial" , "Talkative" , "Covering a wide area" , "Wide-ranging" .)