After the gaol-break, about in their hordes (6)
I believe the answer is:
galore
'their hordes' is the definition.
I can't tell whether this defines the answer.
'after the gaol-break about' is the wordplay.
'after' means one lot of letters go next to another.
'break' indicates anagramming the letters.
'about' becomes 're' (regarding).
'gaol' is an anagram of 'galo'.
'galo' next to 're' is 'GALORE'.
'in' is the link.
Can you help me to learn more?
(Other definitions for galore that I've seen before include "Lo, Reg, a change could be in abundance" , "'Whisky ------!', classic Ealing comedy of 1949" , "to spare" , "In profusion" , "Existing in great numbers" .)