Weak ideology limiting party intelligence (6)
I believe the answer is:
wisdom
'intelligence' is the definition.
(thesaurus)
'weak ideology limiting party' is the wordplay.
'weak' becomes 'w' (physics symbol as in W-boson).
'ideology' becomes 'ism' (capitalism, communism etc).
'limiting' is an insertion indicator.
'party' becomes 'do' (do is a kind of party).
'ism' placed around 'do' is 'isdom'.
'w'+'isdom'='WISDOM'
(Other definitions for wisdom that I've seen before include "These teeth" , "` `Experience is the father of ......' '" , "Knowledge coupled with good judgement" , "Discernment" , "Soundness of judgment, as taught by experience" .)