Simon turning up again! (4)

I believe the answer is:

pure

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'simon turning up again' is the definition.
I can't judge whether this defines the answer.

'turning up again' is the wordplay.
'turning' shows that the letters should be reversed in order.
'again' becomes 're' (prefix meaning 'again').
'up' in reverse letter order is 'pu'.
'pu'+'re'='PURE'

Can you help me to learn more?

(Other definitions for pure that I've seen before include "Flawless, unsullied" , "Unmixed with anything else" , "Chaste" , "Innocent; unsullied" , "Undefiled" .)

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