Hot water's bubbly role with tub (7)
I believe the answer is:
trouble
'hot water's' is the definition.
(I've seen this before)
'bubbly role with tub' is the wordplay.
'bubbly' is an anagram indicator (I've seen this in other clues).
'with' is a charade indicator (letters next to each other).
'role' after 'tub' is 'tubrole'.
'tubrole' is an anagram of 'TROUBLE'.
(Other definitions for trouble that I've seen before include "Pains" , "'A... shared is a... halved'" , "Difficulty, problems" , "Disturb; difficulty" , "Misfortune" .)