13 across
Put
forward
idea
for
sports
ground
(5)
Put forward idea for sports ground (5)
hints
0
checks
0
hints
The whole clue is the definition (& lit or double definition).
How the clue works
This is a double definition clue — Put forward idea and sports ground are both definitions, since the same word covers pitching a proposal and the patch of turf you play football on.