Old English poet meaning to cover page with rhymes, primarily (7)
I believe the answer is:
spenser
'old english poet' is the definition.
(I've seen this before)
'meaning to cover page with rhymes primarily' is the wordplay.
'meaning' becomes 'sense' (synonyms).
'to cover' means one lot of letters goes inside another.
'page' becomes 'p'.
'with' is a charade indicator (letters next to each other).
'primarily' says to take the initial letters.
The initial letter of 'rhymes' is 'r'.
'sense' placed around 'p' is 'spense'.
'spense'+'r'='SPENSER'
(Other definitions for spenser that I've seen before include "English poet of 'The Faerie Queene'" , "Author of "The Faerie Queen", d. 1599" , "The Faerie Queene author" , "Edmund, 16th century poet" , "Fairy Queen author" .)