Lead batsman to become established (4,4)
I believe the answer is:
take root
'become established' is the definition.
(synonyms)
'lead batsman' is the wordplay.
'lead' becomes 'take' (synonyms).
'batsman' becomes 'root' (I can't justify this - if you can you should give a lot more credence to this answer).
'take'+'root'='TAKE ROOT'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for take root that I've seen before include "perform mathematical task" , "Settle down" , "Embed firmly" , "Send down shoots or become established" .)