Shock rare primarily during power cut? (7)
I believe the answer is:
outrage
'shock' is the definition.
(I've seen this before)
'rare primarily during power cut?' is the wordplay.
'primarily' suggests taking the first letters.
'during' means one lot of letters goes inside another.
'power cut?' becomes 'outage' (I've seen this before).
The initial letter of 'rare' is 'r'.
'r' inserted within 'outage' is 'OUTRAGE'.
(Other definitions for outrage that I've seen before include "scandalous!" , "Atrocious act" , "Barbarity" , "Gross affront to decency" , "Offend - atrocity" .)