You can look up the documenation for Clojure functions from within Spacemacs using
You can also search through your project using smart search,
FIXME: Improve this section - suggestions welcome
Show all symbols whose names match QUERY, a regular expression.
(cider-apropos QUERY &optional NS DOCS-P PRIVATES-P CASE-SENSITIVE-P)
QUERY can also be a list of space-separated words (e.g. take while) which will be converted to a regular expression (like take.+while) automatically behind the scenes.
The search may be limited to the namespace NS, and may optionally search doc strings (based on DOCS-P), include private vars (based on PRIVATES-P), and be case-sensitive (based on CASE-SENSITIVE-P).