High regard for each helping to host party (9)
I believe the answer is:
adoration
'high regard' is the definition.
(I've seen this before)
'each helping to host party' is the wordplay.
'each' becomes 'a' (I can't explain this - if you can you should believe this answer much more).
'helping' becomes 'ration' (a ration is a serving or helping).
'to host' indicates putting letters inside (inserted letters are hosted or welcomed).
'party' becomes 'do' (do can informally mean a party).
'a'+'ration'='aration'
'aration' going around 'do' is 'ADORATION'.
'for' is the link.
Can you help me to learn more?
(Other definitions for adoration that I've seen before include "holding someone up a lot" , "Great affection" , "high esteem" , "enormous respect" , "Deep love and respect" .)