A mate raised middle child in Middle East city (5)
I believe the answer is:
dubai
'middle east city' is the definition.
'dubai' can be an answer for 'city' (UAE city). I am not certain of the 'middle east' bit.
'a mate raised middle child' is the wordplay.
'mate' becomes 'bud' (shortly for buddy).
'raised' is a reversal indicator (going up in a down clue).
'middle' means to look at the middle letters.
The middle of 'child' is 'i'.
'a'+'bud'='abud'
'abud' reversed gives 'duba'.
'duba'+'i'='DUBAI'
'in' is the link.
Can you help me to learn more?
(Other definitions for dubai that I've seen before include "Middle East destination" , "Port city on the Persian Gulf" , "Country" , "Gulf city/state" , "Port city of UAE" .)