Amenhotep, so mighty, captures town (5)
I believe the answer is:
epsom
'town' is the definition.
(I've seen this before)
'amenhotep so mighty captures' is the wordplay.
'captures' indicates a hidden word (the answer is trapped within the clue).
'EPSOM' can be found hidden inside 'amenhotep so mighty'.
(Other definitions for epsom that I've seen before include "Poems about English racing venue" , "English town, of course?" , "Mares would triumph here" , "can have horses" , "track in Surrey" .)