Well you can use independent samples t-test to examine gender differences on responses to Likert scale items, and if profession has three or more categories or groups of persons, then you can use a one-way ANOVA.
Go to menubar in SPSS and Analyse, Compare Means, to find each test. For t-test, put gender in grouping variable box, and Likert items in other bigger box (Test Variable).
For ANOVA, put profession in factor box, and Likert items in dependent box. Go to options and select descriptive statistics. Then go to post-hoc and select Boneferroni test.
You can look at the means of each group to determine how strongly one group feels in relation to another group on a particular issue. Then you look at Sig. level (which is the p value) to determine whether the groups differ significantly in their views based on the p-value being less than .05.