Stage? Run out and play guitar (7)
I believe the answer is:
rostrum
'stage?' is the definition.
(thesaurus)
'run out and play guitar' is the wordplay.
'run out' becomes 'ro' (cricket abbreviation).
'and' means one lot of letters go next to another.
'play guitar' becomes 'strum' (I've seen this before).
'ro'+'strum'='ROSTRUM'
(Other definitions for rostrum that I've seen before include "At which one may conduct" , "beak" , "Raised platform" , "Platform for public speakers" , "Platform for speaker" .)