What does the cryptic crossword clue "Rig part of a pilot's training (7)" mean?

The wordplay uses an anagram. anagram of APILOTS ("a pilot's") [anagram: "training"] = TOPSAIL The answer is TOPSAIL.

Rig part of a pilot's training (7)

Independent Cryptic #11898 | 13 Across | 2024-11-27 flower