To insert extra ticks or skip some ticks of a clock to slowly correct its time.
To pivot.
To skid.
To move something (usually a railway line) sideways Example: The single line was slewed onto the disused up formation to make way for the future redoubling.
To make a public mockery of someone through insult or wit.
All clues having "SLEW"
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You can find a list of possible crossword clues for SLEW below.