European trapped in loo: self-esteem to drop! (5,2)
I believe the answer is:
leave go
'drop' is the definition.
(leave go can mean to let go of or drop)
'european trapped in loo self-esteem' is the wordplay.
'european' becomes 'e' (abbreviation e.g. EU).
'trapped in' indicates putting letters inside.
'loo' becomes 'lav' (I've seen this before).
'self-esteem' becomes 'ego' (I've seen this before).
'e' inserted inside 'lav' is 'leav'.
'leav'+'ego'='LEAVE GO'
'to' is the link.
(Other definitions for leave go that I've seen before include "Remove one's grip" , "surrender" , "give up!" , "Free" , "Release" .)