Such girls make for variety in life (5)

I believe the answer is:

spice

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'life' is the definition.
(spice can mean liveliness or excitement)

I can't explain the rest of the clue.

(Other definitions for spice that I've seen before include "Something providing excitement" , "Aromatic flavouring" , "Pungent flavouring" , "Pungent substance to flavour food" , "Eg, cinnamon" .)

I've seen this clue in the Evening Standard.

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