Posed a question to a desk jockey (5)
I believe the answer is:
asked
'posed a question' is the definition.
(I've seen this in another clue)
'a desk jockey' is the wordplay.
'jockey' is an anagram indicator (the letters scramble or jockey around).
'desk' anagrammed gives 'sked'.
'a'+'sked'='ASKED'
'to' acts as a link.
(Other definitions for asked that I've seen before include "Put a question to" , "Demanded" , "Requested" , "Questioned" , "Inquired" .)