One entered by a chap with difficulty? (7)
I believe the answer is:
manhole
'one entered' is the definition.
I can't judge whether this defines the answer.
'a chap with difficulty?' is the wordplay.
'a chap' becomes 'man' (chap can mean a man).
'with' says to put letters next to each other.
'difficulty?' becomes 'hole' (hole can mean a difficult situation).
'man'+'hole'='MANHOLE'
'by' is the link.
Can you help me to learn more?
(Other definitions for manhole that I've seen before include "Inspection chamber" , "Access opening in floor or pavement" , "Access chamber to sewer or drain" , "Underground access point" , "access to water supply?" .)