Crossword puzzle clue "i won't be back till late"

"I won't be back till late"

Late "The Late Late Show" host Tom

"And ___ come back till it's over . . . "

Finnish pentathlete Lehtonen who won back-to-back Olympic gold medals in the 1920s

Rainer who won back-to-back Oscars

Australian tennis player who won back-to-back US Opens in 1997 and 1998: 2 wds.

"Push 'em back! Push 'em back! Way back!"?

Instrument often used in a flashback...back...back...back... *camera pans up everything goes blurry