Expected condensation, say (3)
I believe the answer is:
due
'expected' is the definition.
(similar in meaning)
'condensation say' is the wordplay.
'condensation' becomes 'dew' (dew is a kind of condensation).
'say' shows a homophone (sound like).
'dew' is a homophone of 'DUE'.
(Other definitions for due that I've seen before include "Requisite" , "Ripe for payment or arrival" , "deserts" , "Escort" , "Proper, appropriate" .)