In the future, protest over cuts, perhaps (7)
I believe the answer is:
someday
'in the future' is the definition.
(I've seen this before)
'protest over cuts perhaps' is the wordplay.
'protest' becomes 'demo' (I've seen this before).
'over' shows that the letters should be reversed in order.
'cuts' means one lot of letters goes inside another (some letters cut their way into other letters).
'perhaps' becomes 'say'.
'demo' written backwards gives 'omed'.
'omed' going within 'say' is 'SOMEDAY'.
(Other definitions for someday that I've seen before include "At a future time; samoyed (anag.)" , "eventually" , "An unspecified time in the future" , "song" , "When will my prince come" .)