Long narrow flag (7)
'long narrow flag' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for pennant that I've seen before include "Banner" , "Triangular flag" , "Tapering flag" , "Standard" , "Small flag" .)
'long narrow flag' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for streamer that I've seen before include "Bit of bunting" , "Long flag -- bad cold" , "Pennant" , "Paper ribbon - thin flag" , "Long 23 ac or ribbon" .)