Hot seat included with your leader (6)
I believe the answer is:
sweaty
'hot' is the definition.
(I've seen this before)
'seat included with your leader' is the wordplay.
'included' indicates putting letters inside.
'with' becomes 'w' (short for with).
'leader' indicates taking the first letters.
The first letter of 'your' is 'y'.
'seat' going around 'w' is 'sweat'.
'sweat'+'y'='SWEATY'
(Other definitions for sweaty that I've seen before include "affected by the heat" , "Hot and perspiring" , "Damp with perspiration" , "Showing effects of fever" , "like some athletes in competition?" .)