Animal put weekly in empty enclosure (3)
I believe the answer is:
ewe
'animal' is the definition.
(I've seen this before)
'weekly in empty enclosure' is the wordplay.
'weekly' becomes 'w' (this might be a standard abbreviation of which I'm unaware).
'in' is an insertion indicator.
'empty' suggests removing the centre.
'enclosure' with its centre taken out is 'ee'.
'w' put into 'ee' is 'EWE'.
'put' is the link.
Can you help me to learn more?
(Other definitions for ewe that I've seen before include "Lamb's dam" , "Lamb supplier" , "Scottish loch" , "Language" , "Female bleater" .)