Prominent man venerated when hosting immigrant (7)
I believe the answer is:
salient
'prominent' is the definition.
(synonyms)
'when hosting immigrant' is the wordplay.
'when' becomes 'st' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'hosting' indicates putting letters inside (inserted letters are welcomed in or hosted).
'immigrant' becomes 'alien' (I've seen this before).
'st' placed around 'alien' is 'SALIENT'.
'man venerated' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for salient that I've seen before include "Entails (anag) - most important" , "Projecting outwards; significant" , "Conspicuous; pointing outwards" , "Prominent - in tales (anag)" , "Entails being most noticeable" .)