Having ducks in horses area causes commotion (3-2)
I believe the answer is:
hoo-ha
'commotion' is the definition.
(I've seen this before)
'having ducks in horses area' is the wordplay.
I cannot quite see how this works, but
'ducks' could be 'oo' (I've seen this in other clues) and 'oo' is present in the answer.
'area' could be 'a' (maths abbreviation) and 'a' is located in the answer.
This explanation may well be incorrect...
'causes' is the link.
(Other definitions for hoo-ha that I've seen before include "great deal of fuss" , "In slang, it's a commotion" , "Fuss, commotion" , "Noisy confusion" , "Disturbance" .)