Mince tarts, please, to begin with (5)

I believe the answer is:

start

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'begin with' is the definition.
'start' can be an answer for 'begin' (synonyms). I am not sure about the 'with' bit.

'mince tarts please' is the wordplay.
'tarts' anagrams to 'START'.
But, I'm not sure how the anagram is indicated.

'to' is the link.

Can you help me to learn more?

(Other definitions for start that I've seen before include "Begin - jump" , "Begin; flinch" , "Jerk" , "Initiate" , "Outset" .)

I've seen this clue in the Evening Standard.

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