Sloppy sort of sauce containing some eggs (5)
I believe the answer is:
Here is my best explanation:
'sloppy' is the definition.
'sauce containing some eggs' is the wordplay.
'sauce' becomes 'soy' (soy sauce).
'containing' indicates putting letters inside.
'some eggs' becomes 'gg' (I can't explain this - if you can you should give a lot more credence to this answer).
'soy' enclosing 'gg' is 'SOGGY'.
'sort of' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?