Liver rodents left with first pair to finish pasta (10)

I believe the answer is:
vermicelli
'pasta' is the definition.
(vermicelli is a kind of pasta)
'liver rodents left with first pair to finish' is the wordplay.
I cannot quite see how this works, but
'rodents' could be 'mice' (mouse is a kind of rodent) and 'mice' is located in the answer.
'left' could be 'l' (common abbreviation) and 'l' is found within the answer.
an anagram of 'liver' is 'verli' which is located in the remaining letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for vermicelli that I've seen before include "Worm pasta" , "shreds of chocolate" , "Italian food" , "Chocolate or pasta" , "Stringy pasta" .)
