Wriggle feathers and frisk (5,4)
I believe the answer is:
shake down
'frisk' is the definition.
(thesaurus)
'wriggle feathers' is the wordplay.
'wriggle' becomes 'shake' (I can't justify this - if you can you should believe this answer much more).
'feathers' becomes 'down' (down can mean bird feathers).
'shake'+'down'='SHAKE-DOWN'
'and' is the link.
Can you help me to learn more?
(Other definitions for shake down that I've seen before include "Sleep in an improvised bed - shiver below" , "Hawked son about in kind of extortion" , "Radical restructuring; swindle" .)