IFEELGREAT

MINDTHEGAPWarning on exiting tube train (4,3,3) AUTHORSHIPWriting this, hour wasted filling a puzzle at the beginning (10) METHUSELAHBiblical patriarch – bottle holding six litres of wine (10) ZZBUALDRINAstronaut for whom a Pixar character is named MEMORYLANETake a nostalgic trip down this (6,4) STRIPPOKERCard game that's really taking off? ZZZZFUYWUYBear of children's rhyme THATDOESIT"Enough already!" HIGHSTAKESWith a lot on the line, or a phonetic hint to 3-, 8-, 15-, and 23-Down SUPERWOMANShe flies American back every week to country (10) CEREBRATEDThought before entering bet, card getting dealt (10) MAGNACARTADocument sealed at Runnymede in 1215 (5,5) BIGBROTHERUbiquitous leader is great alongside fellow union member (3,7) INGRATIATEInsinuate