Crossword Genius

Former singers last to go forward, one stretching a leg? (8)

Ross

I believe the answer is:

extensor

'one stretching a leg?' is the definition.

'former singers last' is the wordplay.
'former' becomes 'ex'.
'singers last' becomes 'tensor' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ex'+'tensor'='EXTENSOR'

'to go forward' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.

(Another definition for extensor that I've seen is " Muscle".)

I've seen this clue in The Guardian.
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.