Outfit securing one grand to depart from the plan (7)
I believe the answer is:
digress
'depart from the plan' is the definition.
I can't tell whether this definition defines the answer.
'outfit securing one grand' is the wordplay.
'outfit' becomes 'dress' (I've seen this in another clue).
'securing' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'grand' becomes 'g' (G is short for grand as in a thousand).
'i'+'g'='ig'
'dress' going around 'ig' is 'DIGRESS'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for digress that I've seen before include "Leave the point" , "Depart from the main subject" , "Wander from the point" , "Go off topic" , "Be sidetracked" .)