Produce from information age starts to take effect (8)
I believe the answer is:
generate
'produce' is the definition.
(generating is a kind of producing)
'information age starts to take effect' is the wordplay.
'information' becomes 'gen' (gen is a kind of information).
'age' becomes 'era' (I've seen this before).
'starts to' suggests taking the first letters.
The first letters of 'take effect' is 'te'.
'gen'+'era'+'te'='GENERATE'
'from' acts as a link.
(Other definitions for generate that I've seen before include "Beget" , "Produce with green tea" , "Produce, electricity say" , "Teenager (anag) - green tea (anag)" , "Make" .)