Now and again turns to the compere (9)
I believe the answer is:
presenter
'the compere' is the definition.
(I've seen this before)
'now and again turns' is the wordplay.
'now' becomes 'present' (I've seen this before).
'and' says to put letters next to each other.
'again' becomes 're'.
'turns' says the letters should be written backwards.
're' in reverse letter order is 'er'.
'present'+'er'='PRESENTER'
'to' is the link.
(Other definitions for presenter that I've seen before include "anchor?" , "Broadcast introducer" , "Compere" , "TV/radio introducer" , "shower" .)