Neat small tool plus second utensil (5,3,4)

I believe the answer is:

spick and span

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'neat' is the definition.
(thesaurus)

'small tool plus second utensil' is the wordplay.
'small tool' becomes 'spick' (I can't explain this - if you can you should give a lot more credence to this answer).
'plus' becomes 'and' (I've seen this before).
'second' becomes 's' (common abbreviation).
'utensil' becomes 'pan' (pan is a kind of utensil).
'spick'+'and'+'s'+'pan'='SPICK-AND-SPAN'

Can you help me to learn more?

(Other definitions for spick and span that I've seen before include "Spruced up" , "Very spruce" , "immaculate" , "Neat and tidy" , "Absolutely neat" .)

I've seen this clue in The Times.

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