Rock obtainable from Tangier (7)
I believe the answer is:
granite
'rock' is the definition.
(type of rock)
'from tangier' is the wordplay.
'from' indicates anagramming the letters (the anagram comes from the same letters).
'tangier' is an anagram of 'GRANITE'.
'obtainable' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for granite that I've seen before include "Get rain (anag) - rock" , "Tearing (anag.)" , "Constituent in Dartmoor" , "Showing great resolution" , "A very hard rock from Tangier" .)