Origin of lumps in exotic Persian sweets (8)

I believe the answer is:

pralines

'sweets' is the definition.
(praline is a kind of sweet)

'origin of lumps in exotic persian' is the wordplay.
'origin of' says to take the initial letters.
'in' means one lot of letters goes inside another.
'exotic' indicates anagramming the letters.
The initial letter of 'lumps' is 'l'.
'persian' is an anagram of 'praines'.
'l' inserted into 'praines' is 'PRALINES'.

(Another definition for pralines that I've seen is " Sweets with nuts in caramelized sugar".)

I've seen this clue in The Telegraph.

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