Streamer (6)
'streamer' is the definition.
(synonyms)
This is all the clue.
(Other definitions for banner that I've seen before include "Knight's standard" , "Especially good" , "Distinctive flag" , "Standard; heading" , "Pennant" .)
'streamer' is the definition.
(I know that streamer can be written as pennon)
This is all the clue.
(Other definitions for pennon that I've seen before include "Flag carried by 9 across" , "Knight's personal flag" , "one might be all of a flutter" , "Pointed flag" , "Long narrow triangular flag" .)