Teased about sitting (6)
I believe the answer is:
seated
'sitting' is the definition.
(I know that sitting can be written as seated)
'teased about' is the wordplay.
'about' is an anagram indicator.
'teased' is an anagram of 'SEATED'.
(Other definitions for seated that I've seen before include "not standing for it" , "Given chair" , "Sedentary" , "Sitting in sedate way" .)