1) Becomes limp 2) Chamberlain and namesakes 3) Droops on the stem 4) Droops, flower-style 5) Droops, like an old rose 6) Falters under pressure 7) Flags 8) Flags, like flowers 9) Goes flaccid 10) Goes limp 11) Handles pressure badly 12) Handles pressure poorly 13) Languishes 14) Loses crispness 15) Loses power, like a flower 1) Droops 2) Sags 
Abbreviation for Wiltshire, an English county