It's in heaven, usually (5)
I believe the answer is:
venus
'it's' is the definition.
I can't tell whether this definition defines the answer.
'in heaven usually' is the wordplay.
'in' says the answer is hidden in the clue.
'VENUS' is hidden in the letters of 'heaven usually'.
Can you help me to learn more?
(Other definitions for venus that I've seen before include "One of the planets" , "our Neighbour" , "Planet; goddess" , "Next planet in" , "Heavenly body" .)