Dad has no wood to make a fine display! (7)
I believe the answer is:
panoply
'a fine display' is the definition.
'panoply' can be an answer for 'display' (I have seen 'Impressive display ' mean 'panoply' so perhaps 'display' could also mean 'panoply'). I'm unsure of the 'a fine' bit.
'dad has no wood' is the wordplay.
'dad' becomes 'pa' (synonyms).
'has' is a charade indicator (letters next to each other).
'wood' becomes 'ply' (I can't justify this - if you can you should believe this answer much more).
'pa'+'no'+'ply'='PANOPLY'
'to make' is the link.
Can you help me to learn more?
(Other definitions for panoply that I've seen before include "Trappings" , "Wide range" , "A complete or splendid array" , "Apply no mix to splendid array" , "Superb array; suit of armour" .)