Uninformed, I admit, about new love (8)
I believe the answer is:
ignorant
'uninformed' is the definition.
(thesaurus)
'i admit about new love' is the wordplay.
'admit' becomes 'grant'.
'about' means one lot of letters goes inside another.
'new love' becomes 'no' (I can't justify this - if you can you should give a lot more credence to this answer).
'grant' placed around 'no' is 'gnorant'.
'i'+'gnorant'='IGNORANT'
Can you help me to learn more?
(Other definitions for ignorant that I've seen before include "Illiterate - unaware" , "Empty-headed" , "ill-advised" , "No rating for being uninformed" , "Crass" .)