What does the cryptic crossword clue "Go off to climb, finding rocky height (3)" mean?

The definition is "rocky height". The wordplay uses a reversal. ROT (reversal="go off") = TOR; definition: "rocky height" The answer is TOR.

Go off to climb, finding rocky height (3)

Times Cryptic #28655 | 2 Down | 2023-07-14 flower