Hold water for comedian (5-2)
I believe the answer is:
stand-up
I believe this is a double definition.
'hold water' is the first definition.
(I know that hold water can be written as stand up)
'comedian' is the second definition.
(I've seen this before)
'for' is the link.
(Other definitions for stand-up that I've seen before include "Form of comedy" , "Sort of comic (to be counted?)" , "Performed solo (of a comedy routine)" , "Type of comedian" .)