Crossword Genius

Naughtily suggest including one's husband (8)

Ross

I believe the answer is:

impishly

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'naughtily' is the definition.
Both the answer and definition are adverbs. Perhaps they are linked in a way I don't understand?

'suggest including one's husband' is the wordplay.
'suggest' becomes 'imply' (implying is a kind of suggesting).
'including' means one lot of letters goes inside another.
'one's' becomes 'i's' (Roman numeral).
'husband' becomes 'h' (abbreviation).
'is'+'h'='ish'
'imply' going around 'ish' is 'IMPISHLY'.

Can you help me to learn more?

(Other definitions for impishly that I've seen before include "Mischievously" , "like a naughty child" , "In mischievous fashion" , "In a mischievous way" , "In a mischievous manner" .)

I've seen this clue in The Times.
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