What does the cryptic crossword clue "Tube for liquid malfunctioned in shop (6)" mean?

The definition is "Tube". The wordplay uses an anagram. anagram of IN + SHOP = SIPHON; definition: "Tube" The answer is SIPHON.

Tube for liquid malfunctioned in shop (6)

Daily Mail Cryptic #17362 | 3 Down | 2024-05-21 flower