Stranger on fire: Reg needs putting out (9)
I believe the answer is:
foreigner
'putting out' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'stranger on fire reg' is the wordplay.
'stranger' is an anagram indicator.
'on'+'fire'+'reg'='onfirereg'
'onfirereg' with letters rearranged gives 'FOREIGNER'.
'needs' acts as a link.
Can you help me to learn more?
(Other definitions for foreigner that I've seen before include "One from abroad" , "asylum seeker?" , "chauvinist holds in contempt" , "Alien" , "Stranger, outsider" .)