Add spice to starter of lamb, even in cooking (7)
I believe the answer is:
enliven
'add spice to' is the definition.
(I've seen this in another clue)
'starter of lamb even in cooking' is the wordplay.
'starter of' says to take the initial letters.
'cooking' indicates anagramming the letters (cook can mean to falsify or distort).
The initial letter of 'lamb' is 'l'.
'l'+'even'+'in'='levenin'
'levenin' anagrammed gives 'ENLIVEN'.
(Other definitions for enliven that I've seen before include "Make more animated" , "Put zip or vim into" , "Animate, stimulate" , "Increase appeal" , "Pep up" .)