Stand up, getting dreadful row halted (4,5)
I believe the answer is:
hold water
'stand up' is the definition.
(thesaurus)
'dreadful row halted' is the wordplay.
'dreadful' indicates an anagram.
'row'+'halted'='rowhalted'
'rowhalted' is an anagram of 'HOLD WATER'.
'getting' acts as a link.
(Other definitions for hold water that I've seen before include "stand up" , "Cistern is intended to" , "survive scrutiny" , "Window-cleaners use buckets to" , "make sense?" .)