Study condition on the rise caught by man in the street (7)
I believe the answer is:
profile
'study' is the definition.
(a profile is a study of something)
'condition on the rise caught by man in the street' is the wordplay.
'condition' becomes 'if' (I've seen this in other clues).
'on the rise' says the letters should be written in reverse (in a down clue, letters go up).
'caught by' means one lot of letters goes inside another.
'man in the street' becomes 'prole' (I can't justify this - if you can you should give a lot more credence to this answer).
'if' back-to-front is 'fi'.
'fi' put into 'prole' is 'PROFILE'.
Can you help me to learn more?
(Other definitions for profile that I've seen before include "In which one may be photographed" , "Sideways view" , "record" , "Side view of face" , "dossier" .)