Announce team in America (9)
I believe the answer is:
stateside
'america' is the definition.
(thesaurus)
'announce team' is the wordplay.
'announce' becomes 'state' (I've seen this in another clue).
'team' becomes 'side' (both can mean a sports team).
'state'+'side'='STATESIDE'
'in' is the link.
(Other definitions for stateside that I've seen before include "In the US" , "in America" .)