Spin & spindle.

First give me someone who lives in disguise, who deals in secrets & tells nought but lies.
Then, give me the last thing to mend the middle of middle & end of the end
Next, tell me the sound most often heard during the search for a hard to find word
String them together, then answer me this, which creature would you be unwilling to kiss!

Floodwaters forced these spiders into the trees where they have created a veritable fortress cocooning them.