Crossword Genius

A snare to race out of? (4)

Ross

I believe the answer is:

trap

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

'a snare' is the definition.
(I know that snare can be written as trap)

'race out of?' is the wordplay.
'race' becomes 'tt'.
'out' means to remove the last letter.
'of?' becomes 'rap' (I can't justify this - if you can you should believe this answer much more).
'tt' with its final letter taken off is 't'.
't'+'rap'='TRAP'

'to' is the link.

Can you help me to learn more?

(Other definitions for trap that I've seen before include "Trick" , "Ambush" , "It commonly has a role in speaking" , "Lock" , "Pitfall" .)

I've seen this clue in the Evening Standard.
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