Receive commercial institution in America (5)
I believe the answer is:
admit
'receive' is the definition.
(thesaurus)
'commercial institution in america' is the wordplay.
'commercial' becomes 'ad'.
'institution in america' becomes 'mit' (Massachusetts Institute of Technology).
'ad'+'mit'='ADMIT'
(Other definitions for admit that I've seen before include "Disclose" , "Confess and permit entrance" , "Usher in" , "Recognise" , "Stop being obstructive" .)