Crossword Genius

Slipping away suffering leg pains (8)

Ross

I believe the answer is:

elapsing

'slipping away' is the definition.
('elapse' can be a synonym of 'slip away')

'suffering leg pains' is the wordplay.
'suffering' is an anagram indicator.
'leg'+'pains'='legpains'
'legpains' with letters rearranged gives 'ELAPSING'.

(Another definition for elapsing that I've seen is " Passing, as time".)

I've seen this clue in The Telegraph.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.