What does the cryptic crossword clue "Grounds Tim needs for recreation (8)" mean?

The definition is "Grounds". The wordplay uses an anagram. anagram of TIM + NEEDS = SEDIMENT; definition: "Grounds" The answer is SEDIMENT.

Grounds Tim needs for recreation (8)

Daily Mail Cryptic #17248 | 10 Across | 2023-12-12 flower