A Parisian and Hoskins performing the act of love (5)
I believe the answer is:
union
'act of love' is the definition.
'union' can be an answer for 'love' (thesaurus). I'm not certain of the 'act of' bit.
'a parisian and hoskins performing' is the wordplay.
'a parisian' becomes 'un' ('a' in French).
'and' says to put letters next to each other.
'hoskins' becomes 'I' (where the crossword setter is 'Hoskins').
'performing' becomes 'on' (as in being on stage).
'un'+'i'+'on'='UNION'
'the' is the link.
Can you help me to learn more?
(Other definitions for union that I've seen before include "Organisation of employees formed to bargain with the employer" , "junction" , "Wedding, say" , "Combination" , "Result of joining" .)