Going around with a doctor that's not disheartened (7)
I believe the answer is:
ambient
'going around' is the definition.
(I've seen this before)
'a doctor that's not disheartened' is the wordplay.
'doctor' becomes 'MB' (Bachelor of Medicine, Medicinae Baccalaureus).
'that's' becomes 'ie' (abbreviation for 'id est', 'that is' in Latin).
'disheartened' says to hollow out the word (remove centre letters) (the middle or heart is removed).
'not' with its middle taken out is 'nt'.
'a'+'mb'+'ie'+'nt'='AMBIENT'
'with' is the link.
(Other definitions for ambient that I've seen before include "relaxed atmosphere" , "relaxing type of music?" , "Surrounding, on all sides - light or temperature" , "Of music, say, played at low volume to create atmosphere" , "Circulating" .)