Minister gets a tip for lots of office work (8)
I believe the answer is:
clerical
'of office work' is the definition.
(I've seen this before)
'minister gets a tip for' is the wordplay.
'minister' becomes 'cleric' (I've seen this before).
'gets' means one lot of letters go next to another.
'a tip for' becomes 'al' (I can't justify this - if you can you should give a lot more credence to this answer).
'cleric'+'al'='CLERICAL'
'lots' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for clerical that I've seen before include "Of office work or church ministers" , "Relating to the clergy" , "George Eliot's life?" , "Connected with office work" , "Like error on paper" .)