Puddle (4)
I believe the answer is:
pool
'puddle' is the definition.
(I know that puddle can be written as pool)
This is all the clue.
(Other definitions for pool that I've seen before include "Ball game - piece of water" , "American game like snooker" , "Game; common supply" , "Put into common fund for sharing" , "Game played on a table with six pockets" .)