Feelings or fears of being attacked or overwhelmed, possibly from your own inner feelings, or by a powerful mother – i.e. ones internal dependence upon mother. The alligator and crocodile often represent a hidden form of treachery, apparently harmless until it opens its mouth to eat us. Another attack from deep within can be from repressed emotions.
In ancient Egypt the crocodile was worshipped as the god Sebek. It represented the forces of the unconscious. In this sense the crocodile or alligator in some dreams depicts a personal confrontation with eternity.
Depending upon the dream, the crocodile may well represent what we feel when we confront the collective unconscious. This is an experience of your personal awareness being intimately linked with others, living and dead.
As some people keep pet alligators, there might be a very personal meaning if one has actually kept an alligator.
Useful questions:
What does the alligator represent to me? What do I know about them?
Am I feeling threatened or carried away by any fears?
In what way is my intuition or awareness reaching beyond myself ?
Do I feel myself part of a larger whole?