Smell one gets eating everything with egg and cheese (8)
I believe the answer is:
halloumi
'cheese' is the definition.
(I've seen this before)
'smell one gets eating everything' is the wordplay.
'smell' becomes 'hum' (something with a bad smell is 'humming').
'one' becomes 'i' (Roman numeral).
'gets' indicates putting letters inside (gets can mean captures or absorbs).
'eating everything' becomes 'allo' (I can't explain this - if you can you should give a lot more credence to this answer).
'hum'+'i'='humi'
'humi' going around 'allo' is 'HALLOUMI'.
'with egg and' acts as a link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for halloumi that I've seen before include "Traditional Cypriot cheese" , "Cheese from Cyprus" , "Greek dish of fried goat's cheese" , "Cypriot goat's or sheep's milk cheese" .)