One who’s retiring to keep hotel by remote country dwelling (9)
I believe the answer is:
farmhouse
'country dwelling' is the definition.
(type of rural residence)
'one who's retiring to keep hotel by remote' is the wordplay.
'one who's retiring' becomes 'mouse' (mouse can mean a shy or retiring person).
'to keep' means one lot of letters goes inside another.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'by' says to put letters next to each other.
'remote' becomes 'far' (synonyms).
'mouse' going around 'h' is 'mhouse'.
'mhouse' after 'far' is 'FARMHOUSE'.
(Another definition for farmhouse that I've seen is " Find country dwelling in safe humor".)