Bosun, one hundred and ten, wild and objectionable (9)
I believe the answer is:
obnoxious
'objectionable' is the definition.
(synonyms)
'bosun one hundred and ten wild' is the wordplay.
I cannot really see how this works, but
'one' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is located in the answer.
'ten' could be 'io' (IO resembles 10) and 'io' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for obnoxious that I've seen before include "Repugnant" , "Thoroughly offensive and objectionable" , "Extremely unpleasant" , "Seriously disliked" , "Loathsome" .)