Limb found in river and well (4,2)
I believe the answer is:
dear me
'well' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'limb found in river' is the wordplay.
'limb' becomes 'arm' (arm is a kind of limb).
'found in' means one lot of letters goes inside another.
'river' becomes 'dee' (River Dee).
'arm' placed inside 'dee' is 'DEAR ME'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for dear me that I've seen before include "What a pity" , "Expression of dismay" , "how distressing!" , "how sad" , "Expression of mild regret from precious self" .)