Fine: yours truly cuts eggs for a starter (6)
I believe the answer is:
rookie
'for a starter' is the definition.
'fine yours truly cuts eggs' is the wordplay.
'fine' becomes 'ok' (synonyms).
'yours truly' becomes 'I' (the person that set this crossword).
'cuts' is an insertion indicator (some letters cut their way into other letters).
'eggs' becomes 'roe' (fish eggs).
'ok'+'i'='oki'
'oki' inserted into 'roe' is 'ROOKIE'.
(Other definitions for rookie that I've seen before include "new team member" , "Raw recruit" , "Beginner as in the army" , "Slang for a new recruit" , "Army or police recruit" .)