### Clue: Caress most of bottom frequently to begin with (one's amenable) (1,4,5)
### Answer: A SOFT TOUCH 
 ### Explanation: Definition: one's amenable
 TOUCH(to caress/to touch gently or lovingly) **placed after**(… to begin with) ["ass"(Americanism for "arse"/bottom/rear end) **minus its ****last letter**(most of …) + OFT(often/frequently)].
Defn: …/one who readily gives or does something if asked.