At home, if shifted, put back in position (9)
I believe the answer is:
fireplace
'at home' is the definition.
'fireplace' can be an answer for 'home' (thesaurus). I'm not sure about the 'at' bit.
'if shifted put back in position' is the wordplay.
'shifted' is an anagram indicator.
'put back in position' becomes 'replace' (I've seen this before).
'if' anagrammed gives 'fi'.
'fi'+'replace'='FIREPLACE'
Can you help me to learn more?
(Other definitions for fireplace that I've seen before include "Domestic chimney opening" , "Hearth" , "Recess at the base of a chimney" , "Open space at the base of a chimney" , "hot spot" .)