Leading couples in love, undying, getting somewhere to relax (6)
I believe the answer is:
lounge
'to relax' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
(Other definitions for lounge that I've seen before include "Stand about idly - in posh bar?" , "Room for relaxing" , "Recline lazily; room" , "Waste time -- glue on (anag)" , "Idle man mixing with rich, fashionable people" .)