Soul mate of Eros (6)

I believe the answer is:

psyche

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'soul' is the definition.
(I know that soul can be written as psyche)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for psyche that I've seen before include "Soul, spirit; lover of Cupid" , "Immaterial part of a person" , "The human mind/spirit" , "Human faculty for thought - Cupid's lover" , "The beloved of Eros" .)

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

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