In the London area, you can get to the match by motorway (7)

'in the london area you can get' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'the match by motorway' is the wordplay.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'match' becomes 'cham' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'by' means one lot of letters go next to another.
'motorway' becomes 'MI' (resembles Mc, English motorway).
't'+'cham'='tcham'
'tcham' put after 'mi' is 'MITCHAM'.

'to' is the link.

Can you help me to learn more?