Back on the dole, silly twit! (6)
I believe the answer is:
noodle
'twit' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'back on the dole silly' is the wordplay.
'back' says the letters should be written backwards.
'silly' is an anagram indicator.
'on' in reverse letter order is 'no'.
'dole' anagrammed gives 'odle'.
'no'+'odle'='NOODLE'
Can you help me to learn more?
(Other definitions for noodle that I've seen before include "Foolish person or slangy head" , "bit of a dish" , "Ribbon strip of pasta" , "Nitwit" , "may end up in the soup" .)