Loads back stuff from nose (4)
I believe the answer is:
snot
'stuff from nose' is the definition.
The definition and answer can be both body parts as well as being singular nouns.
Perhaps there's a link between them I don't understand?
'loads back' is the wordplay.
'loads' becomes 'tons' (synonyms).
'back' shows that the letters should be reversed in order.
'tons' reversed gives 'SNOT'.
Can you help me to learn more?
(Other definitions for snot that I've seen before include "Mucus" , "Contemptible type" , "Dog" .)