Answer:

winced

Answer	Crossword Clue
WINCED	Recoiled in pain
WINCED	Drew back in pain
WINCED	Flinched

WINCED	Reacted to a bad joke, perhaps
WINCED	Evinced pain
WINCED	Reacted to a vaccination, perhaps
WINCED	Reacted to a sour note
WINCED	Cringed
WINCED	Reacted to a really bad pun