Conservative sporting dodgy hairstyle wildly funny (10)
I believe the answer is:
hysterical
'wildly funny' is the definition.
(I've seen this before)
'conservative sporting dodgy hairstyle' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'sporting' means one lot of letters goes inside another (inserted letters wear or 'sport' others).
'dodgy' indicates anagramming the letters (a dodgy or wrong order of the letters).
'hairstyle' anagrammed gives 'hysterial'.
'c' put within 'hysterial' is 'HYSTERICAL'.
(Other definitions for hysterical that I've seen before include "Frenzied" , "Over-emotional" , "overwrought" , "Extremely funny" , "Violently emotional" .)