What does the cryptic crossword clue "See a form that's complicated? It's horrifying (8)" mean?

The definition is "horrifying". The wordplay uses an anagram. anagram of SEE + A + FORM = FEARSOME; definition: "horrifying" The answer is FEARSOME.

See a form that's complicated? It's horrifying (8)

Daily Mail Cryptic #17173 | 4 Down | 2023-08-29 flower