Flowers grow inside sheds, oddly (5)
I believe the answer is:
roses
'flowers' is the definition.
(I've seen this before)
'grow inside sheds oddly' is the wordplay.
'inside' indicates the central letters.
'oddly' indicates alternate letters.
The middle of 'grow' is 'ro'.
The alternate letters of 'sheds' are 'ses'.
'ro'+'ses'='ROSES'
(Other definitions for roses that I've seen before include "''They are not long, the days of wine and ...'' (Dowson)" , "favours > certain wines" , "Blooms" , "Flowers of 15th century war" , "Beautiful flowers, seen annually in Tralee" .)