Hawker stuck with her in trouble (8)
I believe the answer is:
huckster
'hawker' is the definition.
('huckster' can be a synonym of 'hawker')
'stuck with her in trouble' is the wordplay.
'with' says to put letters next to each other.
'in trouble' indicates an anagram.
'stuck' after 'her' is 'herstuck'.
'herstuck' is an anagram of 'HUCKSTER'.
(Other definitions for huckster that I've seen before include "Person using aggressive selling methods" , "Dodgy trader" , "Aggressive pedlar" , "Aggressive salesman or hawker" , "bargain" .)