Available territory is hot and exotic (10)
I believe the answer is:
outlandish
'exotic' is the definition.
(I've seen this before)
'available territory is hot' is the wordplay.
'available' becomes 'out' (I've seen this in another clue).
'territory' becomes 'land' (land is a kind of territory).
'hot' becomes 'h' (abbreviation eg on taps).
'out'+'land'+'is'+'h'='OUTLANDISH'
'and' is the link.
(Other definitions for outlandish that I've seen before include "Bizarre - hound's tail (anag)" , "Lad shoutin' (anag)" , "Exotic" .)