Objects seen through telescope, which some members christen alphabetically, after review (7)
I believe the answer is:
planets
'objects' is the definition.
(planet is a kind of object)
'through telescope which some members christen alphabetically after review' is the wordplay.
'PLANETS' is hidden backwards within the letters.
However, I am not sure how the hidden word is indicated.
'seen' is the link.
Can you help me to learn more?
(Other definitions for planets that I've seen before include "Heavenly bodies" , "Celestial bodies" , "Ten laps (anag.)" , "Big bodies" .)