A moor we converted into a rocket range (7)
I believe the answer is:
woomera
'a rocket range' is the definition.
(I know that Woomera is a rocket range)
'a moor we converted' is the wordplay.
'converted' is an anagram indicator.
'a'+'moor'+'we'='amoorwe'
'amoorwe' is an anagram of 'WOOMERA'.
'into' acts as a link.
(Other definitions for woomera that I've seen before include "Aborigine spear stick" , "spear-launcher" , "South Australian town" , "range of Australians" , "Aboriginal throwing stick; Australian rocket range" .)