Lack of coverage from tin spikes on board ship (10)

'lack' is the definition.
(thesaurus)

'coverage from tin spikes on board ship' is the wordplay.
'coverage' becomes 'canes' (I can't justify this - if you can you should believe this answer much more).
'from' indicates an anagram (the anagram comes from the same letters).
'spikes' is an insertion indicator (the word is spiked with inserted letters).
'on board' is an insertion indicator (inserted letters are taken on board).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'tin' anagrammed gives 'nti'.
'canes' enclosing 'nti' is 'cantines'.
'cantines' going into 'ss' is 'SCANTINESS'.

'of' acts as a link.

Can you help me to learn more?