Farm animal in new enclosure (3)
I believe the answer is:
ewe
'farm animal' is the definition.
(I've seen this before)
'in new enclosure' is the wordplay.
'in' indicates a hidden word.
'EWE' can be found hidden inside 'new enclosure'.
(Other definitions for ewe that I've seen before include "Female animal" , "One needing pastoral care" , "Farm animal" , "Scottish loch" , "21a [SHEEP]" .)