Answer: unfurls

AnswerCrossword Clue
UNFURLSOpens, as a banner
UNFURLSDisplays, as a flag
UNFURLSSpreads out
UNFURLSSpreads out, as a flag.
UNFURLSGets a flag ready
unfurlsMake or become spread out from a rolled or folded state, esp. in order to be open to the wind
unfurlsUNFURL, to unroll (to open something that is rolled up)