Rent decreases tangible evidence of sorrow (9)

I believe the answer is:

teardrops

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'tangible evidence of sorrow' is the definition.
I can't judge whether this defines the answer.

'rent decreases' is the wordplay.
'rent' becomes 'tear' (synonyms).
'decreases' becomes 'drops' (drop is a kind of decrease).
'tear'+'drops'='TEARDROPS'

Can you help me to learn more?

(Other definitions for teardrops that I've seen before include "signs of distress" , "blubber product?" , "They fall in sorrow" .)

I've seen this clue in the Sydney Morning Herald.

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