Crossword Genius

Outstanding former PM is straight up (3,5)

Ross

I believe the answer is:

due north

'straight up' is the definition.
(up can mean north)

'outstanding former pm' is the wordplay.
'outstanding' becomes 'due' (I've seen this before).
'former pm' becomes 'north' (Lord North, 18th-century prime minister).
'due'+'north'='DUE NORTH'

'is' acts as a link.

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.