Having no character drinking tea loudly, like seven pairs of solutions here (10)
I believe the answer is:
antonymous
'loudly like seven pairs of solutions here' is the definition.
The definition suggests a singular noun but the answer is not.
'having no character drinking tea' is the wordplay.
'having no character' becomes 'anonymous' (anonymous can mean unmemorable).
'drinking' indicates putting letters inside (inserted letters are consumed or drunk).
'tea' becomes 't' (I've seen this in other clues).
'anonymous' placed around 't' is 'ANTONYMOUS'.
(Other definitions for antonymous that I've seen before include "As War and Peace" , "As near and far are" .)