One appearing to race to embrace corporation up in suburbia? (8,4)
I believe the answer is:
commuter belt
'suburbia?' is the definition.
I don't know anything about this answer so I cannot judge whether this works.
'one appearing to race to embrace corporation up' is the wordplay.
'one appearing' becomes 'comer' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'to race' becomes 'belt' (both can mean to run fast).
'to embrace' is an insertion indicator.
'corporation' becomes 'tum' (I've seen this before).
'up' is a reversal indicator (in down clue: letters go upwards).
'tum' in reverse letter order is 'mut'.
'comer'+'belt'='comerbelt'
'comerbelt' going around 'mut' is 'COMMUTER BELT'.
'in' is the link.
Can you help me to learn more?
(Another definition for commuter belt that I've seen is " area near city?".)