What does the cryptic crossword clue "Climbers might need this held too after mishap (7)" mean?

The definition is "Climbers". The wordplay uses an anagram. anagram of HELD + TOO = TOEHOLD; definition: "Climbers" The answer is TOEHOLD.

Climbers might need this held too after mishap (7)

Daily Mail Cryptic #17588 | 21 Down | 2025-04-02 flower