Sunday Telegraph Prize Crossword 2677 Sunday February 3Rd 2013

[kalahari]

Clarification requested:
21 ac:Sport or game, originally as broadcast on radio (4) G?L?
Is it G O LF (low frequency) or G a la
Thanks in advance

[Neveracrossword]

I'd say Golf - game, and it's 'G for golf', like 'x for x-ray', 'b for bravo' etc.

[Kevinc3514]

If talking on a radio, the letter G (game originally, i.e first letter) is Golf