Recommendation of good Scottish priest born in Paris (9)
I believe the answer is:
guideline
'recommendation' is the definition.
'good scottish priest born in paris' is the wordplay.
'good scottish' becomes 'guid' (Scottish version of 'good').
'priest' becomes 'eli' (biblical figure).
'born in paris' becomes 'ne' ('born' in French).
'guid'+'eli'+'ne'='GUIDELINE'
'of' is the link.
(Other definitions for guideline that I've seen before include "General piece of advice" , "Advice on general policy" , "Directing rule or principle" , "General item of advice" , "Rule of thumb -- need Luigi (anag)" .)