Crossword Genius

One agent had to be redeployed, requiring attention (2,3,6)

Ross

I believe the answer is:

on the agenda

'requiring attention' is the definition.
(something on the agenda needs to be dealt with)

'one agent had to be redeployed' is the wordplay.
'to be redeployed' indicates an anagram.
'one'+'agent'+'had'='oneagenthad'
'oneagenthad' with letters rearranged gives 'ON THE AGENDA'.

I've seen this clue in The Guardian.
Want a hint initially instead of a full solution? Install my app