Renter makes an investment in temporary accommodation (6)
I believe the answer is:
tenant
'renter' is the definition.
(I know that renter can be written as tenant)
'makes an investment in temporary accommodation' is the wordplay.
'makes' indicates anagramming the letters.
'investment in' is an insertion indicator.
'temporary accommodation' becomes 'tent' (people stay in a tent temporarily).
'an' is an anagram of 'na'.
'na' inserted inside 'tent' is 'TENANT'.
(Other definitions for tenant that I've seen before include "Property renter" , "One who pays rent" , "Leaseholder" , "Anne Bronte's novel 'The ...... of Wildfell Hall'" , "Rent payer" .)