Practical party, skilled (6)
I believe the answer is:
doable
'practical' is the definition.
(thesaurus)
'party skilled' is the wordplay.
'party' becomes 'do' (do is a kind of party).
'skilled' becomes 'able' (I've seen this before).
'do'+'able'='DOABLE'
(Other definitions for doable that I've seen before include "Able to be carried out" , "easy to achieve" , "possible" , "Achievable, performable" .)