Able to accommodate the girl? That’s lovely! (8)
I believe the answer is:
adorable
'lovely' is the definition.
('adorable' can be a synonym of 'lovely')
'able to accommodate the girl?' is the wordplay.
'to accommodate' means one lot of letters goes inside another.
'the girl?' becomes 'dora' (**).
'able' placed around 'dora' is 'ADORABLE'.
'that's' is the link.
(Other definitions for adorable that I've seen before include "Worthy of worship" , "Inspiring great affection" , "Very pleasing" , "Attractive - captivating" , "Very charming and attractive" .)