What does the cryptic crossword clue "Contribution to 1 say left out connection with drug (6)" mean?

The wordplay uses a charade (building blocks). INK (synonym="connection") + POT (synonym="cannabis; drug") = INKPOT The answer is INKPOT.

Contribution to 1 say left out connection with drug (6)

Independent Cryptic #11714 | 12 Across | 2024-04-26 flower