Distribution of gifts on big liner (7)
I believe the answer is:
largess
'distribution of gifts' is the definition.
'largess' can be an answer for 'gifts' (I've seen this in another clue). I am unsure of the 'distribution of' bit.
'big liner' is the wordplay.
'big' becomes 'large' (synonyms).
'liner' becomes 'ss' (I am not sure about this - if you are sure you should believe this answer much more).
'large'+'ss'='LARGESS'
'on' is the link.
Can you help me to learn more?
(Other definitions for largess that I've seen before include "Bounty" , "Generosity" .)