Person with a lot of contacts asked me to look at this? If you get to view it, you're probably seeing things! (8)
I believe the answer is:
eyechart
'person with a lot of contacts asked me to look at this? if you get' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.
'view it you're probably seeing things' is the wordplay.
I cannot really understand how this works, but
'view' could be 'eye' (I've seen this before) and 'eye' is found within the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is located in the answer.
The remaining letters 'char' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'to' acts as a link.
Can you help me to learn more?