Mix up introductory letter from bank and loan (5)
I believe the answer is:
blend
'mix up introductory letter' is the definition.
'blend' can be an answer for 'mix' (synonyms). I'm unsure of the 'up introductory letter' bit.
'bank and loan' is the wordplay.
'bank' becomes 'b' (this could be a standard abbreviation of which I'm unaware).
'and' says to put letters next to each other.
'loan' becomes 'lend' (synonyms).
'b'+'lend'='BLEND'
'from' acts as a link.
Can you help me to learn more?
(Other definitions for blend that I've seen before include "Merge" , "Mix and combine" , "Mingle" , "Amalgamate" , "Mix together" .)