Small, small bit of titillation to suit lovers (11)
I believe the answer is:
sweethearts
'lovers' is the definition.
(sweetheart is a kind of lover)
'small small bit of titillation to suit' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'small' becomes 'wee' ('wee' can be similar in meaning to 'small'**).
'bit of' indicates taking the first letters.
'to suit' becomes 'hearts' (I've seen this before).
The initial letter of 'titillation' is 't'.
's'+'wee'+'t'+'hearts'='SWEETHEARTS'
(Other definitions for sweethearts that I've seen before include "Loves" , "darlings!" , "They love" , "lovers" .)