Roars menacingly, boxing gondoliers (7)
I believe the answer is:
oarsmen
'gondoliers' is the definition.
The answer and definition can be both people as well as being plural nouns.
Perhaps there's a link between them I don't understand?
'roars menacingly boxing' is the wordplay.
'boxing' says the answer is hidden in the clue (the solution is contained or boxed up by the clue).
'OARSMEN' is hidden in the letters of 'roars menacingly'.
Can you help me to learn more?
(Other definitions for oarsmen that I've seen before include "They propel boats manually" , "Male propellers of boats" , "Male rowers" , "They row boats" , "People in boats" .)