What does the cryptic crossword clue "Excerpt from Antonioni's domestic tear-jerker? (5)" mean?

The definition is "domestic". The wordplay uses a hidden word. hidden in [Ant]-ONION-[i] The answer is ONION.

Excerpt from Antonioni's domestic tear-jerker? (5)

Guardian Cryptic #29128 | 6 Down | 2023-07-21 flower