Compensate for cancelled series (6)
I believe the answer is:
offset
'compensate for' is the definition.
(I've seen this before)
'cancelled series' is the wordplay.
'cancelled' becomes 'off' ('off' can be similar in meaning to 'cancelled').
'series' becomes 'set' (I've seen this before).
'off'+'set'='OFFSET'
(Other definitions for offset that I've seen before include "Counteract to compensate" , "Distance out of line" , "make an effort" , "Balance out" , "Type of printing of efts" .)