Holiday home has criminal dropping in (5)
I believe the answer is:
villa
'holiday home' is the definition.
(I've seen this before)
'criminal dropping in' is the wordplay.
'criminal' becomes 'villain' (both can mean a bad person).
'dropping' is a deletion indicator.
'villain' with 'in' removed is 'VILLA'.
'has' acts as a link.
(Other definitions for villa that I've seen before include "Large country house" , "Midlands football team" , "Detached house" , "Country house in Italy or France" , "Classical country house" .)