Fortune-telling cards predict love will be found in pie (5)

I believe the answer is:

tarot

I'm a little stuck... Click here to teach me more about this clue!

'fortune-telling cards' is the definition.
(I've seen this before)

'predict love will be found in pie' is the wordplay.
I cannot really understand how this works, but
'love' could be 'o' (love means zero in tennis) and 'o' is located in the answer.
'pie' could be 'tart' (I've seen this before) and 'tart' is found in the leftover letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for tarot that I've seen before include "One in special suit" , "Special cards for fortune-telling" , "Mystic cards" , "Pack of cards used in fortune-telling" , "Cards used for fortune telling" .)

I've seen this clue in The Irish Times.

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