Crossword Genius

When one enters Ely comfortably (6)

Ross

I believe the answer is:

easily

'comfortably' is the definition.
(I've seen this before)

'when one enters ely' is the wordplay.
'when' becomes 'as' (eg 'when I walked' means 'as I walked').
'one' becomes 'i' (Roman numeral).
'enters' is an insertion indicator.
'as'+'i'='asi'
'asi' placed within 'ely' is 'EASILY'.

(Other definitions for easily that I've seen before include "no problem!" , "Comfortably" , "Simply" , "Very probably" , "Effortlessly" .)

I've seen this clue in The Sun.
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