An overseas hazard is not all it's made out to be for those involved in December gathering (4)
I believe the answer is:
berg
'an overseas hazard is not all it's made out to be for those involved' is the definition.
I can't judge whether this defines the answer.
'in december gathering' is the wordplay.
'in' says the answer is hidden in the clue.
'BERG' is hidden within 'december gathering'.
Can you help me to learn more?
(Other definitions for berg that I've seen before include "Viennese composer" , "feature of icy waters" , "Small version of ice mountain" , "Austrian composer of 12-tone music, d. 1935" , "Alban -, composer (Wozzeck, Lulu)" .)