Taken aboard ship, Neapolitan food for horse (10)
I believe the answer is:
Here is my best explanation:
'horse' is the definition.
(I've seen this before)
'taken aboard ship neapolitan food' is the wordplay.
'taken aboard' indicates putting letters inside.
'ship' becomes 'liner' (liner is a kind of ship).
'neapolitan food' becomes 'pizza'.
'liner' placed around 'pizza' is 'LIPIZZANER'.
'for' acts as a link.
(Other definitions for lipizzaner that I've seen before include "Grey", "Horse" and "Breed of horse in the Spanish Riding School of Vienna".)