Knowing Conservative, it's e.g. 'Land of Hope and Glory' which is uplifting (7)
I believe the answer is:
gnostic
'knowing' is the definition.
(thesaurus)
'conservative it's e g land of hope and glory which is uplifting' is the wordplay.
I cannot really understand how this works, but
'conservative' could be 'c' (abbreviation commonly used in UK politics) and 'c' is found within the answer.
'g' is within the answer.
'of' could be 'o' and 'o' is present in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found within the answer.
The remaining letters 'si' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for gnostic that I've seen before include "Having special mystical knowledge, costing a lot" , "Occult" , "Relating to mystical knowledge" .)