Austrian composer causes big problem for captain of ill-fated ship, in short (4)
I believe the answer is:
berg
'austrian composer' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for berg that I've seen before include "famously cut short a transatlantic journey" , "Small version of ice mountain" , "South African hill - Austrian composer" , "Shipping hazard; composer" , "Mass of ice floating at sea" .)