Emerging dynasty is after convenience (7)
I believe the answer is:
looming
'emerging' is the definition.
Although both the answer and definition are present participle verbs, I cannot see how they can define each other.
'dynasty is after convenience' is the wordplay.
'dynasty' becomes 'ming' (Ming dynasty of China).
'is after' means one lot of letters go next to another.
'convenience' becomes 'loo' (both can mean a toilet).
'ming' after 'loo' is 'LOOMING'.
Can you help me to learn more?
(Other definitions for looming that I've seen before include "Hovering as something dark or threatening" , "Imminent in a menacing way" , "Coming into view" , "Appearing threateningly" , "Appearing indistinctly" .)