Basket orphan girl found after parking next to river (7)
I believe the answer is:
pannier
'basket' is the definition.
(I've seen this before)
'orphan girl found after parking next to river' is the wordplay.
'orphan girl' becomes 'annie' (from the musical Annie).
'found after' says to put letters next to each other.
'parking' becomes 'p'.
'next to' says to put letters next to each other.
'river' becomes 'r'.
'annie' put after 'p' is 'pannie'.
'pannie'+'r'='PANNIER'
(Other definitions for pannier that I've seen before include "Basket carried by beast of burden" , "This will carry" , "One of a pair of baskets" , "dosser" , "Large basket" .)