Exciting comprehensive that won't leave you cold (8,7)
I believe the answer is:
electric blanket
'won't leave you cold' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'exciting comprehensive' is the wordplay.
'exciting' becomes 'electric' (similar in meaning).
'comprehensive' becomes 'blanket' (similar in meaning).
'electric'+'blanket'='ELECTRIC BLANKET'
'that' is the link.
Can you help me to learn more?
(Other definitions for electric blanket that I've seen before include "Bed warmer" , "Bed heater" , "Provider of extra bed heat" , "this might warm you up" , "cover at night" .)