Like to come round by Tuesday to see compound (9)
I believe the answer is:
admixture
'compound' is the definition.
(thesaurus)
'like to come round by tuesday' is the wordplay.
'like' becomes 'admire' (I've seen this in another clue).
'to come round' is an insertion indicator.
'by tuesday' becomes 'xtu' (I can't explain this - if you can you should believe this answer much more).
'admire' placed around 'xtu' is 'ADMIXTURE'.
'to see' is the link.
Can you help me to learn more?
(Other definitions for admixture that I've seen before include "Ingredient" , "little extra" , "amalgamation" .)