Newly-wed receives £1,000 cross (6)
I believe the answer is:
bridge
'cross' is the definition.
(bridging is a kind of crossing)
'newly-wed receives ps1000' is the wordplay.
'newly wed' becomes 'bride' (I've seen this in other clues).
'receives' indicates putting letters inside.
'psg000' becomes 'g' (I am not sure about this - if you are sure you should believe this answer much more).
'bride' placed around 'g' is 'BRIDGE'.
(Other definitions for bridge that I've seen before include "English composer" , "Four-handed card game" , "Spanning structure to allow passage" , "''Like a ... over troubled water'' (Simon and Garfunkel)" , "Bony upper part of nose; card game" .)