Hospital people who are experienced get together affectionately (4,5)
I believe the answer is:
hold hands
'are experienced get together affectionately' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'hospital people' is the wordplay.
'hospital' becomes 'H' (abbreviation for hospital on maps).
'people' becomes 'oldhands' (old hand is a kind of person).
'h'+'oldhands'='HOLD HANDS'
'who' acts as a link.
Can you help me to learn more?
(Other definitions for hold hands that I've seen before include "What partners do" , "in bridge with two hearts in play?" .)