Host ate nuts in uncomfortable position (3,4)
I believe the answer is:
'uncomfortable position' is the definition.
(I've seen this in another clue)
'host ate nuts' is the wordplay.
'nuts' indicates anagramming the letters (nuts can mean crazy).
'hostate' is an anagram of 'HOT SEAT'.
'in' is the link.
(Other definitions for hot seat that I've seen before include "Position of full responsibility (colloq.)" , "new constituency" , "Chair for person with difficult responsibility" , "Position carrying full responsibility" , "Situation of responsibility or danger" .)