Need oar to do exercise in public school (7)
I believe the answer is:
roedean
'exercise in public school' is the definition.
'roedean' can be an answer for 'school' (I've seen this before). I am unsure of the 'exercise in public' bit.
'need oar to do' is the wordplay.
'to do' indicates anagramming the letters (I've seen 'doing' mean this (doing can mean solving or working out)).
'need'+'oar'='needoar'
'needoar' anagrammed gives 'ROEDEAN'.
Can you help me to learn more?
(Other definitions for roedean that I've seen before include "Posh girls' school in Sussex" , "Girls public school" , "Famous girls' school" , "Brighton girls' school" , "Independent school" .)