Roman fighter gives Daisy one kiss (7)

I believe the answer is:

asterix

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'roman fighter' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'daisy one kiss' is the wordplay.
'daisy' becomes 'aster' (I've seen this before).
'one' becomes 'i' (Roman numeral).
'kiss' becomes 'x' (X can represent a kiss).
'aster'+'i'+'x'='ASTERIX'

'gives' is the link.

Can you help me to learn more?

(Other definitions for asterix that I've seen before include "French cartoon character" , "Cartoon book Gaul" , "A Gaul, fought Romans (Goscinny)" , "Gallic hero" .)

I've seen this clue in The Guardian.

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