Having no right to souvenir might become jealous (7)

I believe the answer is:

envious

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'jealous' is the definition.
(I know that jealous can be written as envious)

I can't explain the remainder of the clue.

Can you help me to learn more?

(Other definitions for envious that I've seen before include "Covetous, jealous" , "Grudging of others" , "Mildly jealous" , "Full of jealousy" , "Green-eyed" .)

I've seen this clue in The Globe and Mail.

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