Tharoor dropping hot one for band (4)
I believe the answer is:
sash
'one for band' is the definition.
(sash is a kind of band)
'tharoor dropping hot' is the wordplay.
'tharoor' becomes 'sas' (I am not sure about this - if you are sure you should believe this answer much more).
'dropping' says to take the initial letters (I've seen 'drop of' mean this).
The first letter of 'hot' is 'h'.
'sas'+'h'='SASH'
Can you help me to learn more?
(Other definitions for sash that I've seen before include "Type of sliding window" , "Band of cloth" , "Sliding window frame" , "Brown bread for waist or shoulder" , "Long strip of material - window frame" .)