Linklater's content to respond cheekily (4,4)
'respond cheekily' is the definition.
(to talk back is to respond in a cheeky way)
'linklater's content' is the wordplay.
I cannot really see how this works, but
'content' could be 'ba' (BA is an example) and 'ba' is located in the answer.
This may be the basis of clue (or it may be nonsense).
'to' is the link.
(Another definition for talk back that I've seen is "System of two-way communication".)