Crossword Genius

Intended as the match of a lifetime (5)

Ross

I believe the answer is:

union

I'm a little stuck... Click here to teach me more about this clue!

'match of a lifetime' is the definition.
'union' can be an answer for 'match' (I've seen this before). I'm unsure of the 'of a lifetime' bit.

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for union that I've seen before include "Result of joining" , "Workers' organisation or marriage" , "Marriage; pipe joint" , "Wedding, say" , "Association with a common purpose" .)

I've seen this clue in The Globe and Mail.
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.