Flower list written around mid-July (5)
I believe the answer is:
tulip
'flower' is the definition.
(tulip is a type of flower)
'list written around mid-july' is the wordplay.
'list' becomes 'tip' (both can mean to lean or incline).
'written around' is an insertion indicator (some letters go around others).
'mid' indicates the central letters (mid- can mean the middle of something).
The middle letters of 'july' are 'ul'.
'tip' going around 'ul' is 'TULIP'.
(Other definitions for tulip that I've seen before include "Popular garden flower from Amsterdam?" , "Amsterdam bloom?" , "Bulbous plant" , "(Dutch) bloom" , "cause of mania once" .)