Creep generates publicity with member of parliament (5)
I believe the answer is:
prowl
'creep' is the definition.
(thesaurus)
'publicity with member of parliament' is the wordplay.
'publicity' becomes 'PR' (abbreviation for public relations).
'with' means one lot of letters go next to another.
'member of parliament' becomes 'owl' ('parliament' is the collective noun for 'owl').
'pr'+'owl'='PROWL'
'generates' acts as a link.
(Other definitions for prowl that I've seen before include "Steal around predatorily" , "Nose around" , "Stalk about" , "Roam in search of prey" , "Walk around predatorily" .)