Respond - to an encore call? (5)
I believe the answer is:
react
'respond' is the definition.
(I know that respond can be written as react)
'an encore call?' is the wordplay.
'an encore' becomes 're' (I can't explain this - if you can you should believe this answer much more).
'call?' becomes 'act' (call is a kind of act).
're'+'act'='REACT'
'to' is the link.
Can you help me to learn more?
(Other definitions for react that I've seen before include "Behave in response" , "Retaliate" , "Acknowledge" , "What a chemical might do" , "Respond to a stimulus" .)