Animal and I getting round in vehicle for holiday (8)
I believe the answer is:
vacation
'holiday' is the definition.
('vacation' can be a synonym of 'holiday')
'animal and i getting round in vehicle' is the wordplay.
'animal' becomes 'cat' (I've seen this before**).
'and' is a charade indicator (letters next to each other).
'getting round' becomes 'o' (I've seen this in other clues).
'in' means one lot of letters goes inside another.
'vehicle' becomes 'van' (van is a kind of vehicle).
'cat'+'i'+'o'='catio'
'catio' put within 'van' is 'VACATION'.
'for' is the link.
(Other definitions for vacation that I've seen before include "Leave" , "Holiday period" , "break" , "Leisure time away from work" , "An American holiday" .)