Enlarged, did accommodate the old (7)
I believe the answer is:
dilated
'enlarged' is the definition.
(I've seen this before)
'did accommodate the old' is the wordplay.
'accommodate' indicates putting letters inside.
'the old' becomes 'late' (I've seen this in other clues).
'did' placed around 'late' is 'DILATED'.
(Other definitions for dilated that I've seen before include "Widened; expanded" , "Distended" , "Spoke at length" , "Made more open" , "Enlarged" .)