Googled a couple of things, but this was really a puzzle that forced you to think outside the box.
1A: Sputtered (loststeam). I had lost speed at first.
14D: Mall rats, typically (teencrowd)
30D: A cut above? (hairstyle)
12D: Chronic fatigue syndrome, informally (yuppieflu)
46A: Less sympathetic (stonier).
48D: Blowout (gala). I was thinking something to do with tires...
Totally loved 34A: showstopper (hardacttofollow). I got it with only two or three letters.
It's been too many years since I played Candy Land. Had to get a few of the downs before the name of a candy (gumdrop) came to mind.
It usually drives me nuts to see a clue appear more than once. Shingle abbr. appeared at 7D (estd), and again at 38A (bros), but I thought they were both good answers.
Boffo? Never heard of it, but it's the answer to 33A: Like a showstopper.
Theaterof/theabsurd is a connected answer appearing at 29A and 37A (20th century avant-garde movement). Another tied answer is Apple/Inc at 18A and 24A, clued as Fortune 500 company founded by two college dropouts. That was one of the few gimmes.
27D: Psychiatric discipline pioneered by Margaret Naumburg (arttherapy). Good clue, great form of therapy. When our girls first came to live with us, Nancy used a combination of play therapy and art therapy. Very telling.
Three weeks into my job, and things are going well. After three years of intensive case management with families, it's a welcome change to be on the administrative side--working with donors and volunteers, applying for grants, fundraising. Life is good.