Goodness me, such infernal clangers! (5,5)
I believe the answer is:
hells bells
'goodness me' is the definition.
The definition suggests a singular noun which matches the answer.
'infernal clangers' is the wordplay.
'infernal' becomes 'hells' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'clangers' becomes 'bells' (things which make clanging noises).
'hells'+'bells'='HELLS BELLS'
'such' 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?" .)