Father to run over Scottish paddock (4)
I believe the answer is:
frog
'paddock' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for frog that I've seen before include "Amphibious neighbour of 12?" , "Adult tadpole" , "Amphibian (lodged in the throat?)" , "Common amphibian" , "One of Ranidae" .)