Alan in times past showing poise (7)
I believe the answer is:
balance
'poise' is the definition.
(I know that poise can be written as balance)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for balance that I've seen before include "Surplus" , "Weighing device" , "Sign" , "Equipoise" , "emotional stability" .)