Noted figure's outcry in historical battle (5)
I believe the answer is:
crecy
'historical battle' is the definition.
'Crecy' can be an answer for 'battle' (Crecy is an example). I'm not sure about the 'historical' bit.
'noted figure's outcry in' is the wordplay.
'noted figure' becomes 'ec' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'outcry' becomes 'cry' (synonyms).
'in' means one lot of letters goes inside another.
'ec' placed inside 'cry' is 'CRECY'.
Can you help me to learn more?
(Other definitions for crecy that I've seen before include "Where Black Prince won spurs" , "Thirteen fourty six win for Edward III" .)