Sweet couple in conversation over fall (4,4)

I believe the answer is:

pear-drop

I'm a little stuck... Click here to teach me more about this clue!

'sweet' is the definition.
(I've seen this before)

'couple in conversation over fall' is the wordplay.
'couple' becomes 'pair' (synonyms).
'in conversation' shows a homophone (sound like).
'over fall' becomes 'drop' (synonyms. I am not sure about the 'over' bit.).
'pair' is a homophone of 'pear'.
'pear'+'drop'='PEAR-DROP'

Can you help me to learn more?

(Other definitions for pear-drop that I've seen before include "Proper ad (anag.)" , "Sweet - pendant" , "Boiled sweet" .)

I've seen this clue in The Telegraph.

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