Trump's head enhaloed in near bliss (7)
I believe the answer is:
nirvana
'bliss' is the definition.
(blissful state in Buddhism)
I cannot understand how the remainder of the clue works.
(Other definitions for nirvana that I've seen before include "State of perfect happiness" , "Eastern place of complete bliss" , "Buddhist 23" , "Transcendent state of Buddhists" , "'Transcendent state, the final goal of Buddhism (7)'" .)