The hot property of Noah calls for attention! (4)
I believe the answer is:
hark
'noah calls for attention' is the definition.
I can't judge whether this defines the answer.
'the hot property' is the wordplay.
'the hot' becomes 'h' (abbreviation eg on taps).
'property' becomes 'ark' (I can't justify this - if you can you should believe this answer much more).
'h'+'ark'='HARK'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for hark that I've seen before include "Listen as in olden days" , "Hear" , "Listen (exclamation)" .)