Predator used teeth to tear plant (7)

I believe the answer is:

hawkbit

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'tear plant' is the definition.
'hawkbit' can be an answer for 'plant' (hawkbit is a kind of plant). I'm not sure about the 'tear' bit.

'predator used teeth' is the wordplay.
'predator' becomes 'hawk' (hawk is a kind of predator).
'used teeth' becomes 'bit' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'hawk'+'bit'='HAWKBIT'

'to' is the link.

Can you help me to learn more?

(Another definition for hawkbit that I've seen is " plant".)

I've seen this clue in The Telegraph.

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