Crossword Genius

Son runs off - and runs off quickly! (7)

Ross

I believe the answer is:

sprints

I'm a little stuck... Click here to teach me more about this clue!

'runs off quickly' is the definition.
I can't judge whether this defines the answer.

'son runs off' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'runs off' becomes 'prints' (I've seen this in another clue).
's'+'prints'='SPRINTS'

'and' acts as a link.

Can you help me to learn more?

(Other definitions for sprints that I've seen before include "Dashes" , "Darts" , "careers" .)

I've seen this clue in The Independent.
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