There's no silence while you're eating it (4)
I believe the answer is:
nosh
'while you're eating it' is the definition.
I can't tell whether this defines the answer.
'there's no silence' is the wordplay.
'there's' becomes 'n' (I've seen this in other clues).
'no' becomes 'o' (O resembles 0).
'silence' becomes 'sh' ('sh' is said to tell someone to be silent).
'n'+'o'+'sh'='NOSH'
Can you help me to learn more?
(Other definitions for nosh that I've seen before include "eating this?" , "Eat (sl.)" , "'Food, grub (4)'" , "Eats" , "Scoff" .)