Normal type of flag (8)
I believe the answer is:
standard
This clue is a triple definition!
'normal' is the first definition.
('standard' is associated in meaning with 'normal')
'type' is the second definition.
(thesaurus)
'of' is a link.
'flag' is the third definition.
(standard is a kind of flag)
(Other definitions for standard that I've seen before include "Touchstone, benchmark 98)" , "Basic criterion" , "Average sort of flag" , "Ceremonial flag" , "sort of lamp" .)