Conservative Party to feel great need (5)
I believe the answer is:
crave
'feel great need' is the definition.
'crave' can be an answer for 'feel' (thesaurus). I'm not certain of the 'great need' bit.
'conservative party' is the wordplay.
'conservative' becomes 'C' (UK political abbreviation).
'party' becomes 'rave' (type of dance party).
'c'+'rave'='CRAVE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for crave that I've seen before include "Have strong urge" , "Fairly sizeable" , "Yearn for (something)" , "Desire strongly" , "Really want" .)