7ac Young one who'd come out by kind of junction is a liability (4)
DEBT
Glad to see the perpetuation of deb(utante). Still well within living memory. Last ball - July 1958.
Must admit I wasn't aware of UPS as a delivery company (United Parcels Service). I can see DHL coming up in a clue for author Roald or for dahlia.
That was 3d Company that delivers positive experiences (3)