Therapist has service on foreign street set up (7)
I believe the answer is:
masseur
'therapist' is the definition.
(masseur is a kind of therapist)
'service on foreign street set up' is the wordplay.
'service' becomes 'mass' (I've seen this in other clues).
'on' says to put letters next to each other.
'foreign street' becomes 'rue' (I have seen 'French street ' mean 'rue' so perhaps 'street' could also mean 'rue'. I am not sure about the 'foreign' bit.).
'set up' is a reversal indicator.
'rue' reversed gives 'eur'.
'mass'+'eur'='MASSEUR'
'has' is the link.
Can you help me to learn more?
(Other definitions for masseur that I've seen before include "One providing soothing treatment" , "Muscle manipulator" , "One who kneads bodies" , "Manipulative type?" , "rubber needed" .)