Wake up - theres nothing in the trick (5)

I believe the answer is:

rouse

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'wake up' is the definition.
(rouse can mean to wake up)

'nothing in the trick' is the wordplay.
'nothing' becomes 'O' (O resembles 0).
'in the' means one lot of letters goes inside another.
'trick' becomes 'ruse' (I've seen this in other clues).
'o' going within 'ruse' is 'ROUSE'.

'theres' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.

Can you help me to learn more?

(Other definitions for rouse that I've seen before include "Activate, wake up" , "Stir from inactivity" , "Excite; awaken" , "Prod" , "Cause to wake up and come alert" .)

I've seen this clue in The Irish News.

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