In reply to lisa69:
That Stephen can't find it is a blow but doesn't rule out finding a possible answer.
1. What would help is to know which bit of Cumbria she visited as that would narrow down the locals e.g. to a specific valley/town/village?
2. Are we talking about Rock climbing or is it possible the climb is the broader term for getting up a hill/mountain so may refer to a sneaky wa to get past an impasse, That 'locals' knew a name suggests this more so than if it were local climbers (rock climbers).
3. The 3rd thought Sears Fell may be a simple transcription error. Somebody says 'oh yes that was on Sca Fell' (normally pronounced Scar Fell...is written down as Scar Fell) and handwriting then misread as with the 'c' seen as an 'e' Sear Fell...
On Shepherds Crag the really popular route everybody climbs as Ardus was originally called Andus until a transcription error crept in, and the likes of Scaw Fell, Doe Crag, and Wastdale have all changed...albeit 90 years ago.