Place for pool, say, up for discussion (2,3,5)
I believe the answer is:
on the table
This clue is a double definition.
'place for pool say' is the first definition.
(pool is played on a pool table)
'up for discussion' is the second definition.
(something on the table is being discussed)
(Other definitions for on the table that I've seen before include "Where to lay out fighting irons" , "open for discussion" .)