Sort of orange, nice to start with chopped veal (5)
I believe the answer is:
navel
'sort of orange' is the definition.
(navel orange is a type of orange)
'nice to start with chopped veal' is the wordplay.
'to start with' indicates taking the first letters.
'chopped' is an anagram indicator (letters chopped or smashed up).
The initial letter of 'nice' is 'n'.
'veal' anagrammed gives 'avel'.
'n'+'avel'='NAVEL'
(Other definitions for navel that I've seen before include "Bellybutton" , "Variety of orange" , "Belly button" , "Scar on the stomach (for gazing at?)" , "Where the umbilical cord was once attached" .)