What does the cryptic crossword clue "Member of high society who’s no social climber (6)" mean?

The definition is "Member of high society who’s no social climber". The wordplay uses a cryptic definition. Cryptic definition The answer is SHERPA.

Member of high society who’s no social climber (6)

Guardian Cryptic #29463 | 22 Down | 2024-08-16 flower