Nag putting space between husband and kiss (7)
I believe the answer is:
henpeck
'nag' is the definition.
(I've seen this before)
'space between husband and kiss' is the wordplay.
'space' becomes 'en' (in printing, a space as wide as a letter 'n').
'between' means one lot of letters goes inside another.
'husband' becomes 'h' (abbreviation).
'and' means one lot of letters go next to another.
'kiss' becomes 'peck' (pecking is a kind of kissing).
'h'+'peck'='hpeck'
'en' put inside 'hpeck' is 'HENPECK'.
'putting' is the link.
(Other definitions for henpeck that I've seen before include "(Of a woman) continually criticise (a husband)" , "Harass (husband)" , "Nag as domestic fowl might" , "Nag a husband" , "Browbeat" .)