Face piece of film, not quiet, very loud (5)
I believe the answer is:
cliff
'face' is the definition.
(thesaurus)
'piece of film not quiet very loud' is the wordplay.
'piece of film' becomes 'clip' (I've seen this in another clue).
'not' indicates named letters should be taken away.
'quiet' becomes 'p' (music symbol for 'piano', ie soft or quiet).
'very loud' becomes 'ff' (musical abbreviation).
'clip' with 'p' removed is 'cli'.
'cli'+'ff'='CLIFF'
(Other definitions for cliff that I've seen before include "High, steep rock face" , "A steep rock-face on coast" , "Man" , "Precipice" , "Sir - - Richard" .)