Blathers on about the broken ratchet in the bin (10)
I believe the answer is:
chatterbox
'the bin' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how one could define the other.
'blathers on about the broken ratchet' is the wordplay.
'blathers on' becomes 'box' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'about' means one lot of letters go next to another.
'the broken' is an anagram indicator.
'ratchet' is an anagram of 'chatter'.
'box' after 'chatter' is 'CHATTERBOX'.
'in' is the link.
Can you help me to learn more?
(Other definitions for chatterbox that I've seen before include "who rabbits on?" , "Windbag" , "One using plenty of gas" , "Garrulous type" , "Gossip" .)