Having been dried, is in the wet! (6)
I believe the answer is:
raisin
'having been dried' is the definition.
I can't tell whether this definition defines the answer.
'is in the wet' is the wordplay.
'in' is an insertion indicator.
'the wet' becomes 'rain' (the wet can mean wet weather).
'is' going inside 'rain' is 'RAISIN'.
Can you help me to learn more?
(Other definitions for raisin that I've seen before include "A dried grape used in cake" , "Dried red grape" , "Cultivating" , "Somewhat dry fruit" , "Dried fruit" .)