Manage to put rhyme into Anglo-Saxon language (7)
I believe the answer is:
oversee
'manage' is the definition.
(I've seen this before)
'rhyme into anglo-saxon language' is the wordplay.
'rhyme' becomes 'verse' ('verse' can be a synonym of 'rhyme').
'into' means one lot of letters goes inside another.
'anglo-saxon language' becomes 'oe' (abbreviation for Old English).
'verse' placed within 'oe' is 'OVERSEE'.
'to put' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
(Other definitions for oversee that I've seen before include "Keep a check on" , "Act as tutor" , "Supervise like ganger" , "Supervise, control" , "Exercise supervision" .)