Part of Leclerc or Vettel's craft (8)
I believe the answer is:
corvette
'craft' is the definition.
(corvette is a kind of craft)
'part of leclerc or vettel's' is the wordplay.
'part of' indicates the answer is hidden within the clue.
'CORVETTE' is hidden in the letters of 'leclerc or vettels'.
(Other definitions for corvette that I've seen before include "Warship smaller than a frigate" , "Fighting ship" , "Small warship for escorting larger vessels" , "Small naval escort vessel" , "Light warship" .)