What does the cryptic crossword clue "A few withdrawn angsty teens perhaps (4)" mean?

The definition is "A few". The wordplay uses a reversal. reverse of SOME = EMOS; definition: "angsty teens perhaps" The answer is EMOS.

A few withdrawn angsty teens perhaps (4)

Independent Cryptic #11656 | 26 Across | 2024-02-19 flower