One ridden may be brought to shore (5)
I believe the answer is:
horse
'one ridden may be' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'to shore' is the wordplay.
'shore' anagrams to 'HORSE'.
However, I am not clear how the anagram is indicated.
'brought' acts as a link.
Can you help me to learn more?
(Other definitions for horse that I've seen before include "Domesticated animal" , "Vaulting block" , "Nag, hack" , "Its mouth a reliable source of info" , "eg Shire" .)