### Clue: Sort of quite like morning by river, still and noiseless (5,2,1,5)
### Answer: QUIET AS A MOUSE 
 ### Explanation: Definition: still and noiseless
 **Anagram of**(Sort of) QUITE + AS(like/similar to) + AM(abbrev. for "ante meridiem"/the morning part of the day) **plus**(by) OUSE(the river in N. Yorkshire).