Hot seat abandoned in a hurry (5)
I believe the answer is:
haste
'in a hurry' is the definition.
(I've seen this before)
'hot seat abandoned' is the wordplay.
'hot' becomes 'h' (common abbreviation eg on taps).
'abandoned' is an anagram indicator (the original order is abandoned).
'seat' anagrammed gives 'aste'.
'h'+'aste'='HASTE'
(Other definitions for haste that I've seen before include "Hurry, urgency" , "''Marry in . . . . ., repent at leisure''" , "The more of it, the less speed sometimes" , "Speediness or rush" , "The more of it, the less speed, it is said" .)