Enter a clue or pattern or both:
The Clue
Burning the midnight oil, so to speak (6 letter answer)
The Answer
UPLATE
Tags
Notes
The answer UPLATE is rarely seen, appearing only about once every 1600 puzzles.
Related Clues
Burning the midnight oil
Working through the night
Pulling an all-nighter, e.g.
Watching Letterman or Conan, say
Still awake at 1 a.m., say