Good gracious, is that the damned alarm? (5,5)
I believe the answer is:
hells bells
'the damned alarm?' is the definition.
The definition suggests a singular noun which matches the answer.
'good gracious is' is the wordplay.
I cannot quite see how this works, but
'is' could be 'be' and 'be' is located in the answer.
This explanation may well be incorrect...
'that' acts as a link.
Can you help me to learn more?
(Other definitions for hells bells that I've seen before include "Those with a ring of fire" , "dammit?" .)