Finally consuming starter of eggs, if nothing else (2,5)
I believe the answer is:
at least
'if nothing else' is the definition.
(I've seen this before)
'finally consuming starter of eggs' is the wordplay.
'finally' becomes 'atlast' ('at last' can be a synonym of 'finally').
'consuming' indicates putting letters inside.
'starter of' suggests taking the first letters.
The initial letter of 'eggs' is 'e'.
'atlast' going around 'e' is 'AT LEAST'.
(Other definitions for at least that I've seen before include "No less than" , "Eat salt (anag) - if nothing else" , "Anyway" , "As a minimum" , "however" .)