Assorted bits and pieces, bandit left out are of a particular variety (7)
I believe the answer is:
species
'are of a particular variety' is the definition.
'species' can be an answer for 'variety' (species is a kind of variety). I am not certain of the 'are of a particular' bit.
'assorted bits and pieces bandit left' is the wordplay.
'assorted' indicates anagramming the letters.
'left' indicates named letters should be taken away (some letters have left).
'bits'+'and'+'pieces'='bitsandpieces'
'bitsandpieces' with 'bandit' taken out is 'spieces'.
'spieces' is an anagram of 'SPECIES'.
'out' acts as a link.
Can you help me to learn more?
(Other definitions for species that I've seen before include "Taxonomic group capable of interbreeding" , "Taxonomic grouping" , "Category" , "Breed or genus" , "Kind of creature" .)