Roll unwrapped Easter egg at Scottish reel (7)

I believe the answer is:

stagger

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'scottish reel' is the definition.
'stagger' can be an answer for 'reel' (I've seen this before). I'm not sure about the 'scottish' bit.

'roll unwrapped easter egg' is the wordplay.
'roll' becomes 'roster' (synonyms).
'unwrapped' says to take the centre (the letters which wrap the word are removed).
'easter egg' becomes 'agger' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
The centre of 'roster' is 'st'.
'st'+'agger'='STAGGER'

'at' acts as a link.

Can you help me to learn more?

(Other definitions for stagger that I've seen before include "Pitch" , "Reel; arrange so as to be out of line" , "Totter" , "move by someone under the table?" , "Reel, walk unsteadily" .)

I've seen this clue in The Telegraph.

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