'There was a group of people, each pointing in a different direction.'
1) Here, would you say the italicised words are an adjective phrase? Or a non-finite dependent clause (reduced relative clause)? Why I am confused whether it is one or the other is because a non-finite clause can sometimes have no subject...even though it is a clause, so I thought that maybe this was a non-finite clause and not a phrase...
2) And is this sentence grammatical? Everything after 'people' seems weird..with the comma joiningthem together..

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3) I often see constructions like this where they omit the verb (each
was pointing) so that it is no longer a clause and insert a comma (now that there it isn't a clause, a comma is permissible). So is this fine?

There was a group of people. Each were pointing in a different direction.
BECOMES:
'There was a group of people, each pointing in a different direction.'
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If I write it with a relative clause.......
'There was a group of people who were/was each pointing in a different direction'
4)Each is a singular indefinite pronoun, so I thought it would be 'was'. But, I think the subject is not 'each,' but 'who', which is plural (group of people). So it is 'were'. Is this correct?
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Thanks a lot in advance.
