Cut out the ribald bit as tasteless (6)
I believe the answer is:
garish
'tasteless' is the definition.
(similar in meaning)
'cut out the ribald bit' is the wordplay.
'cut' becomes 'gash' (a gash is a wound or cut).
'out' indicates putting letters inside.
'the ribald bit' becomes 'ri' (I can't explain this - if you can you should give a lot more credence to this answer).
'gash' enclosing 'ri' is 'GARISH'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for garish that I've seen before include "Overbright and showy" , "Vulgarly colourful" , "Excessively bright, over-colourful (6)" , "Cheap, flash" , "Tastelessly showy" .)