Prisoners into this, a good pandowdy prepared on the outside? (5,5)

'prisoners into this' is the definition.
The definition suggests a singular noun which matches the answer.

'a good pandowdy prepared on the outside?' is the wordplay.
'good' becomes 'g' (abbreviation).
'prepared' is an anagram indicator.
'on the outside?' means one lot of letters goes inside another.
'pandowdy' anagrammed gives 'paddywon'.
'a'+'g'='ag'
'ag' inserted inside 'paddywon' is 'PADDY-WAGON'.

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