A man who has only recently arrived? (6)
I believe the answer is:
justin
'a man who has only' is the definition.
'Justin' can be an answer for 'a man'. I am not certain of the remainder of the definition.
'recently arrived?' is the wordplay.
'recently' becomes 'just' (I've seen this before).
'arrived?' becomes 'in' (I've seen this in other clues).
'just'+'in'='JUSTIN'
Can you help me to learn more?
(Other definitions for justin that I've seen before include "-- Timberlake, singer" , "Boy's name" , "Boy" .)