These days, love is a bother (3)
I believe the answer is:
ado
'a bother' is the definition.
(I've seen this before)
'these days love' is the wordplay.
'these days' becomes 'ad' (as in Anno Domini, after Christ).
'love' becomes 'o' (In tennis, 'love' means 'zero').
'ad'+'o'='ADO'
'is' is the link.
(Other definitions for ado that I've seen before include "stew is provided" , "flapping" , "Song and dance" , "Fuss, trouble" , "Fuss, bother" .)