Follow celebrity showing heavenly body (7)
I believe the answer is:
dogstar
'heavenly body' is the definition.
I know nothing about this answer so I can't tell whether this works.
'follow celebrity' is the wordplay.
'follow' becomes 'dog' (dog can mean to follow or torment).
'celebrity' becomes 'star' (a star is a celebrity or famous person).
'dog'+'star'='DOGSTAR'
'showing' acts as a link.
Can you help me to learn more?
(Other definitions for dogstar that I've seen before include "This the brightest" , "animal on TV?" , "Bright night light" .)