Treat the delay with some warmth of feeling (8)

I believe the answer is:

heatedly

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'some warmth of feeling' is the definition.
I can't tell whether this defines the answer.

'treat the delay' is the wordplay.
'treat' is an anagram indicator.
'the'+'delay'='thedelay'
'thedelay' anagrammed gives 'HEATEDLY'.

'with' acts as a link.

Can you help me to learn more?

(Other definitions for heatedly that I've seen before include "With passion" , "How people might argue" , "In an emotional and inflamed manner" , "Angrily, being warm?" .)

I've seen this clue in The Irish News.

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