Legendary poet to shore up construction (7)
I believe the answer is:
orpheus
'legendary poet' is the definition.
'orpheus' can be an answer for 'poet' (I have seen 'Thracian poet' mean 'orpheus' so perhaps 'poet' could also mean 'orpheus'). I am not sure about the 'legendary' bit.
'shore up construction' is the wordplay.
'construction' indicates anagramming the letters (answer constructed from certain letters).
'shore'+'up'='shoreup'
'shoreup' anagrammed gives 'ORPHEUS'.
'to' is the link.
Can you help me to learn more?
(Other definitions for orpheus that I've seen before include "Legendary lyre-playing poet" , "Eurydice's husband" , "Taj Mahal city" , "In Greek myth he sought his wife Eurydice in the Underworld" , "Greek lyrist" .)