Duck found on banks of beautiful rivers of Ireland (4)
I believe the answer is:
bend
'duck' is the definition.
(thesaurus)
'on banks of beautiful rivers of ireland' is the wordplay.
'on' is a charade indicator (letters next to each other).
'banks of' means to remove the middle letters (the banks are the sides of the word).
'beautiful' becomes 'bonnie' ('bonnie' can be similar in meaning to 'beautiful').
'rivers of ireland' becomes 'nd' (I am not sure about this - if you are sure you should believe this answer much more).
'bonnie' with its middle taken out is 'be'.
'be' put next to 'nd' is 'BEND'.
'found' acts as a link.
Can you help me to learn more?
(Other definitions for bend that I've seen before include "It may be sinister" , "elbow" , "Crouch" , "Repair" , "submit" .)