Minnelli on road finds creature (6)
I believe the answer is:
lizard
'creature' is the definition.
(lizard is a kind of animal)
'minnelli on road' is the wordplay.
'minnelli' becomes 'liza' (I've seen this in another clue).
'on' means one lot of letters go next to another (in a down clue, letters appear on others).
'road' becomes 'rd' (abbreviation for road).
'liza'+'rd'='LIZARD'
'finds' is the link.
(Other definitions for lizard that I've seen before include "leading to a windswept village" , "Monitor, for example" , "England's southernmost Point" , "Two-legged reptile" , "A reptile; a Cornish Head" .)