Reserve place for farm animal, regularly taken inside (4,4)
I believe the answer is:
fort knox
'reserve place' is the definition.
'fort knox' can be an answer for 'place' (I have seen 'safe place' mean 'fort knox' so perhaps 'place' could also mean 'fort knox'). I'm not certain of the 'reserve' bit.
'for farm animal regularly taken inside' is the wordplay.
'farm animal' becomes 'ox'.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'inside' indicates putting letters inside.
The alternating letters of 'taken' are 'tkn'.
'for'+'ox'='forox'
'forox' going around 'tkn' is 'FORT KNOX'.
Can you help me to learn more?
(Other definitions for fort knox that I've seen before include "American military reservation which holds the nation's gold bullion" , "Site of US bullion reserve" , "Location of US gold depository" , "Secure location" , "Military reservation in Kentucky which guards America's gold" .)