This clue uses an anagram - look for an anagram indicator and letters to rearrange
This is an anagram - find the indicator and the letters to rearrange
Answer: MONTEGOBAY | Definition: 'somewhere in 15' | Wordplay: MONTY (reference to Monty Python [wiki]), around both of: anagram/”wandering” of (boa)* after EG (e.g. = “say”)