Hospital overlooking rather conventional practice (5)
I believe the answer is:
habit
'conventional practice' is the definition.
'habit' can be an answer for 'practice' (habit is a kind of practice). I'm not certain of the 'conventional' bit.
'hospital overlooking rather' is the wordplay.
'hospital' becomes 'h' (abbreviation for hospital on maps).
'overlooking' is a charade indicator (letters next to each other) (in a down clue, some letters go above others).
'rather' becomes 'a bit' ('a bit' can mean rather or to some extent).
'h'+'abit'='HABIT'
Can you help me to learn more?
(Other definitions for habit that I've seen before include "bent" , "Addiction to a drug" , "Custom, nun's wear" , "Regular practice" , "Monk's gown or custom" .)