Tough position perhaps as result of lying? (3,4)
I believe the answer is:
hot seat
'tough position' is the definition.
(I've seen this in another clue)
I cannot understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for hot seat that I've seen before include "Hates to be in difficult position" , "Difficult or dangerous position" , "Warm place for one with difficult task?" , "Difficult situation" , "Situation of responsibility or danger" .)