What does the cryptic crossword clue "Boaters in Sanremo at sea (7)" mean?

The definition is "Boaters". The wordplay uses an anagram. anagram of SANREMO = OARSMEN; definition: "Boaters" The answer is Oarsmen.

Boaters in Sanremo at sea (7)

Telegraph Prize Cryptic #3050 | 18 Down | 2020-04-05 flower