Stupidly see following current old lady (7)
I believe the answer is:
inanely
'stupidly' is the definition.
(I've seen this before)
'see following current old lady' is the wordplay.
'see' becomes 'Ely' (see is a place with a cathedral - e.g. Ely).
'following' means one lot of letters go next to another.
'current' becomes 'I' (symbol for electric current).
'old lady' becomes 'nan' (British slang for grandmother).
'i'+'nan'='inan'
'ely' put after 'inan' is 'INANELY'.
(Other definitions for inanely that I've seen before include "In a fatuous manner" , "Senselessly" , "in a daft way" , "Vapidly" , "Stupidly" .)