### Clue: Huge area of mountains left deserted between Spain and the borders of India (7)
### Answer: EURASIA 
 ### Explanation: Definition: Huge area
 "Urals"(mountain range running through Russia and Kazakhstan – and part of the conventional boundary between the European and Asian continents) **minus**(… deserted) "l"(abbrev. for "left") **contained in**(between) [ E(International Vehicle Registration Code for Spain) **plus**(and) **1st and last letters of**(the borders of) "India" ].
Defn: … consisting of the combined landmass of the European and Asian continents.