A banner at new memorial displaying force (9)
I believe the answer is:
oriflamme
'a banner' is the definition.
(I've seen this before)
'new memorial displaying force' is the wordplay.
I cannot really see how this works, but
'force' could be 'f' (symbol used in Physics e.g. f=ma) and 'f' is found within the answer.
an anagram of 'memorial' is 'orilamme' which is located in the left over letters.
No letters remain.
This explanation may well be incorrect...
'at' acts as a link.
Can you help me to learn more?
(Other definitions for oriflamme that I've seen before include "Banner" , "Knight's standard (hist.)" , "French flag" .)