Both sides of strategy for Alexander (5)
I believe the answer is:
sandy
'alexander' is the definition.
(nickname for Alexander)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for sandy that I've seen before include "Ginger" , "Yellowish-brown; name" , "Light yellowish brown" , "Hair colour" , "Like many beaches" .)