In Latin, one expression of repugnance competent? Ridiculous! (9)
I believe the answer is:
laughable
'ridiculous' is the definition.
(I know that ridiculous can be written as laughable)
'in latin one expression of repugnance competent?' is the wordplay.
I cannot quite see how this works, but
'latin' could be 'l' and 'l' is found in the answer.
'one' could be 'a' (a thing is one thing) and 'a' is located in the answer.
'expression' could be 'ugh' (I have seen 'Expression of disgust' mean 'ugh' so perhaps 'expression' could also mean 'ugh') and 'ugh' is present in the answer.
'competent?' could be 'able' (similar in meaning) and 'able' is found within the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for laughable that I've seen before include "Ridiculous, derisory" , "Incongruous, inviting ridicule" , "Ridiculous - make you chortle" , "Risible, ridiculous" , "comic" .)