Very hot without right current (7)
I believe the answer is:
topical
'current' is the definition.
(similar in meaning)
'very hot without right' is the wordplay.
'very hot' becomes 'tropical' (in the tropics).
'without' suggests deleting specific letters.
'right' becomes 'r' (common abbreviation).
'tropical' with 'r' removed is 'TOPICAL'.
(Other definitions for topical that I've seen before include "Related to current affairs" , "Some skin lotions are" , "Relating to current affairs" , "Dealing with current affairs" , "About current events, of present interest" .)