Single politician is hot and playful (6)
I believe the answer is:
impish
'playful' is the definition.
(similar in meaning)
'single politician is hot' is the wordplay.
'single' becomes 'I' (I as in one).
'politician' becomes 'MP' (Member of Parliament).
'hot' becomes 'h' (abbreviation eg on taps).
'i'+'mp'+'is'+'h'='IMPISH'
'and' acts as a link.
(Other definitions for impish that I've seen before include "Mischievous like small fairy" , "Playful" , "Mischievous like small devil" , "Teasingly mischievous" , "troublesome" .)