Fold petal a different way (5)
I believe the answer is:
pleat
'fold' is the definition.
(I know that pleat is a type of fold)
'petal a different way' is the wordplay.
'a different way' indicates an anagram.
'petal' with letters rearranged gives 'PLEAT'.
(Other definitions for pleat that I've seen before include "Double fold in a garment" , "Gather" , "Tuck" , "Crease" , "work on skirt?" .)