Omen from newcomer involved in a row (4)
I believe the answer is:
crew
'a row' is the definition.
The answer and definition can be both groups as well as being singular nouns.
Maybe there's a link between them I don't understand?
'omen from newcomer involved' is the wordplay.
'from' suggests deleting specific letters.
'involved' is an anagram indicator (involved can mean confusing or complex).
'newcomer' with 'omen' taken away is 'wcer'.
'wcer' with letters rearranged gives 'CREW'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for crew that I've seen before include "Cox and Co" , "They operate ships or aircraft, say" , "Ship or aircraft staff" , "Very short haircut for the ship's complement" , "Staff of boat" .)