What does the cryptic crossword clue "Raft I'd lost at sea (6)" mean?

The definition is "sea". The wordplay uses an anagram. anagram of RAFT + I'D = ADRIFT; definition: "lost at sea" The answer is ADRIFT.

Raft I'd lost at sea (6)

Independent Cryptic #11669 | 6 Down | 2024-03-05 flower