Edward to move in circles? (4)

I believe the answer is:

eddy

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'move in circles?' is the definition.
(I've seen this before)

'edward to' is the wordplay.
'edward' becomes 'Ed' (short for Edward).
'to' becomes 'dy' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ed'+'dy'='EDDY'

Can you help me to learn more?

(Other definitions for eddy that I've seen before include "Chap" , "Swirl, whirl" , "Swirl; Duane -, US guitarist" , "Water circulating" , "Founder of Christian Science, d. 1910" .)

I've seen this clue in The Sun.

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