Flowering plant Paul replanted around border (7)
I believe the answer is:
primula
'flowering plant' is the definition.
(I've seen this before)
'paul replanted around border' is the wordplay.
'replanted' indicates anagramming the letters (letters get placed or planted in new positions).
'around' means one lot of letters goes inside another.
'border' becomes 'rim' (both can mean an edge).
'paul' with letters rearranged gives 'pula'.
'pula' going around 'rim' is 'PRIMULA'.
(Other definitions for primula that I've seen before include "Flowering plant" , "Primrose" , "Cowslip relative" , "Spring flower" , "Air plum, oddly, from this plant" .)