Drama for one held up by essentially extinct gag in Globe? (9)
I believe the answer is:
artichoke
'globe?' is the definition.
(globe artichoke is a type of artichoke)
'drama for one held up by essentially extinct gag' is the wordplay.
'drama for one' becomes 'art' (drama is an art).
'held up by' says to put letters next to each other (in a down clue, some letters hold others up).
'essentially' says to take the centre.
'gag' becomes 'choke' (synonyms).
The central letter of 'extinct' is 'i'.
'art'+'i'+'choke'='ARTICHOKE'
'in' acts as a link.
(Other definitions for artichoke that I've seen before include "Thistle-like plant with edible heads" , "Vegetable could give you a thicko ear" , "something to eat" , "Globe vegetable?" , "Plant with edible flower heads" .)