Second newspaper claiming love is “sentimental” (4)
I believe the answer is:
soft
'sentimental' is the definition.
(I've seen this in another clue)
'second newspaper claiming love' is the wordplay.
'second' becomes 's' (common abbreviation).
'newspaper' becomes 'FT' (Financial Times newspaper).
'claiming' means one lot of letters goes inside another.
'love' becomes 'o' (love means zero in tennis).
's'+'ft'='sft'
'sft' enclosing 'o' is 'SOFT'.
'is' is the link.
(Other definitions for soft that I've seen before include "Gentle; easy to cut" , "Malleable, light" , "p. (mus.)" , "firm? On the contrary" , "Not hard, rough or harsh" .)