Chap who escaped commotion in hotel certainly heard in Paris (7)
I believe the answer is:
houdini
'chap who escaped' is the definition.
The definition suggests a singular noun which matches the answer.
'commotion in hotel certainly heard in paris' is the wordplay.
'commotion' becomes 'din' (synonyms).
'in' indicates putting letters inside.
'hotel' becomes 'h' (phonetic alphabet: alpha, bravo, charlie etc.).
'certainly heard in paris' becomes 'oui' (I can't explain this - if you can you should believe this answer much more).
'h'+'oui'='houi'
'din' inserted within 'houi' is 'HOUDINI'.
Can you help me to learn more?
(Other definitions for houdini that I've seen before include "Famous American escapologist Harry ......." , "Expert at escaping" , "Entertainer bound" , "Harry was famous as an escape artist" , "Harry . . . . . . ., famed American escapologist" .)