Steamship in sound finds problem (6)
I believe the answer is:
hassle
'problem' is the definition.
(I've seen this before)
'steamship in sound' is the wordplay.
'steamship' becomes 'ss' (nautical abbreviation).
'in' means one lot of letters goes inside another.
'sound' becomes 'hale' (both can mean healthy).
'ss' put inside 'hale' is 'HASSLE'.
'finds' acts as a link.
(Other definitions for hassle that I've seen before include "Lashes (anag)" , "Hound" , "Harass; pester" , "argument" , "Harass - grief" .)