Business worked around inclusions, and yet with diligence (15)
I believe the answer is:
conscientiously
'business worked' is the definition.
I can't judge whether this defines the answer.
'around inclusions and yet with diligence' is the wordplay.
'around' indicates an anagram.
'and' means one lot of letters go next to another.
'with' means one lot of letters go next to another.
'diligence' becomes 'co' (I can't justify this - if you can you should give a lot more credence to this answer).
'inclusions'+'yet'='inclusionsyet'
'inclusionsyet' with letters rearranged gives 'nscientiously'.
'nscientiously' put after 'co' is 'CONSCIENTIOUSLY'.
Can you help me to learn more?
(Another definition for conscientiously that I've seen is " Acting so is trying to do what is right".)