Prudence, storing old record as a first move (8)
I believe the answer is:
prologue
'a first move' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'prudence storing old record' is the wordplay.
'prudence' becomes 'prue' (I can't explain this - if you can you should believe this answer much more).
'storing' indicates putting letters inside.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'record' becomes 'log' (log is a kind of record).
'o'+'log'='olog'
'prue' going around 'olog' is 'PROLOGUE'.
'as' acts as a link.
Can you help me to learn more?
(Other definitions for prologue that I've seen before include "Dramatic preface" , "Preface to a literary work" , "Poor glue (anag.)" , "Start to play" , "Introductory scene" .)