At a pinch, go quietly (5)

I believe the answer is:
steal
'go quietly' is the definition.
(I've seen this in another clue)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for steal that I've seen before include "Purloin" , "Whip" , "Filch" , "pirate" , "Make off with" .)
