Is surrounding old lady with religious leaders (5)
I believe the answer is:
imams
'religious leaders' is the definition.
(I've seen this in another clue)
'is surrounding old lady' is the wordplay.
'surrounding' means one lot of letters goes inside another.
'old lady' becomes 'mam'.
'is' placed around 'mam' is 'IMAMS'.
'with' acts as a link.
(Other definitions for imams that I've seen before include "Islamic holy men" , "devotional officers" , "Mosque officers" , "They lead prayers in mosques" , "Muslim prayer leaders" .)