I feel cold, not half shivering on this? (3,4)
I believe the answer is:
ice floe
'this?' is the definition.
The definition suggests a singular noun which matches the answer.
'i feel cold not half shivering' is the wordplay.
'not half' means to take half the letters.
'shivering' indicates an anagram.
'cold' cut in half is 'co'.
'feel'+'co'='feelco'
'feelco' anagrammed gives 'cefloe'.
'i'+'cefloe'='ICE-FLOE'
'on' acts as a link.
Can you help me to learn more?
(Other definitions for ice floe that I've seen before include "Large sheet of frozen water" , "Floating mass of frozen water" , "hazard in wintry climes?" , "Frozen floating object" , "Expanse of frozen water" .)