What does the cryptic crossword clue "Volunteers given Japanese soup in ground (5,2)" mean?

The wordplay uses an anagram. anagram of SOUP (synonym="SOUP") + IN (synonym="IN") + J (synonym="Japanese") = JOINSUP The answer is JOINSUP.

Volunteers given Japanese soup in ground (5,2)

Guardian Cryptic #29669 | 19 Down | 2025-04-15 flower