More on passing through eighteenth entrance? (7)
I believe the answer is:
greater
'more' is the definition.
(I've seen this before)
'on passing through eighteenth entrance?' is the wordplay.
'on' becomes 'at' (I've seen this in other clues).
'passing through' indicates putting letters inside.
'eighteenth entrance?' becomes 'greer' (I can't justify this - if you can you should give a lot more credence to this answer).
'at' placed into 'greer' is 'GREATER'.
Can you help me to learn more?
(Other definitions for greater that I've seen before include "Most of it was formerly part of 1 across" , "More significant" , "more imposing scale" , "Less small" , "of more importance" .)