Lustful desire for new host (4)
I believe the answer is:
hots
'lustful desire' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'new host' is the wordplay.
'new' indicates anagramming the letters.
'host' with letters rearranged gives 'HOTS'.
'for' is the link.
Can you help me to learn more?
(Other definitions for hots that I've seen before include "Intense sexual desire" , "Heats (colloq.)" .)