### Clue: By the sound of it, woman with impenetrable intonation (7)
### Answer: CADENCE 
 ### Explanation: Definition: intonation
 **Homophone of**(By the sound of it) ["Kay" (a feminine name) + "dense"(impenetrable, as in "a dense jungle") ]. I'm not sure about the second half of the homophone.
Defn: The modulation of the voice.