Make a call where you figure to take a seat (5)
I believe the answer is:
visit
'make a call' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'you figure to take a seat' is the wordplay.
'you figure' becomes 'vi' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to take a seat' becomes 'sit' (sit down on a seat).
'vi'+'sit'='VISIT'
'where' acts as a link.
Can you help me to learn more?
(Other definitions for visit that I've seen before include "Call on - stay" , "Pay social call" , "Look up" , "Come to see" , "Go and see (someone)" .)