Funny shtick that's in poor taste (6)
I believe the answer is:
kitsch
'in poor taste' is the definition.
('kitsch' can be similar in meaning to 'in poor taste')
'funny shtick' is the wordplay.
'funny' indicates anagramming the letters.
'shtick' anagrammed gives 'KITSCH'.
'that's' is the link.
(Other definitions for kitsch that I've seen before include "Sentimental or pretentious "art"" , "Pretentious, tawdry artwork" , "Sentimental, tasteless stuff" , "Trash, trashy" , "Poor taste" .)