Female on farm by river finds pitcher (4)
I believe the answer is:
ewer
'pitcher' is the definition.
(I know that pitcher can be written as ewer)
'female on farm by river' is the wordplay.
'female on farm' becomes 'ewe' (female sheep).
'by' says to put letters next to each other.
'river' becomes 'r' (abbreviation).
'ewe'+'r'='EWER'
'finds' acts as a link.
(Other definitions for ewer that I've seen before include "Jug with wide spout" , "water-carrier" , "A type of jug" , "Vessel for pouring" , "Sort of jug" .)