Girl in time seen to be ordinary? (7)
I believe the answer is:
average
'to be ordinary?' is the definition.
('average' can be similar in meaning to 'ordinary')
'girl in time' is the wordplay.
'girl' becomes 'vera' (**).
'in' indicates putting letters inside.
'time' becomes 'age' (age is a kind of time).
'vera' put within 'age' is 'AVERAGE'.
'seen' acts as a link.
(Other definitions for average that I've seen before include "Mean - everyday" , "Normal in arithmetic way" , "Mean; standard" , "Fair to middling" , "Usual - mediocre - mean" .)