Discovered naked bishop using drug - it's almost indecent (4,3,4)
I believe the answer is:
near the bone
'almost indecent' is the definition.
(I've seen this before)
'discovered naked bishop using drug it's' is the wordplay.
I cannot really see how this works, but
'bishop' could be 'b' (chess abbreviation) and 'b' is found in the answer.
'using' could be 'on' (someone using drugs is 'on' them) and 'on' is present in the answer.
'drug' could be 'h' (H is an example) and 'h' is present in the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for near the bone that I've seen before include "Been on earth (anag) - risque" , "almost indecent" , "blue" , "On the verge of indecency" , "going too far?" .)